Home / 91,879,958.40-126,799,990.72-50,626,840

Finding the Fourth Proportional to 91,879,958.40, 126,799,990.72 and 50,626,840

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Solution

The fourth proportional to 91,879,958.40, 126,799,990.72 and 50,626,840 is: 69,868,151.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,879,958.40 : 126,799,990.72 = 50,626,840 : x
  2. Step 2: Convert to fraction form
    91,879,958.40/126,799,990.72 = 50,626,840/x
  3. Step 3: Cross multiply
    91,879,958.40x = 126,799,990.72 × 50,626,840
  4. Step 4: Simplify right side
    91,879,958.40x = 6,419,482,842,182,925
  5. Step 5: Solve for x
    x = 6,419,482,842,182,925/91,879,958.40
  6. Step 6: Final answer
    x = 69,868,151.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.