Home / 91,440.64-126,187.50-51,154.21

Finding the Fourth Proportional to 91,440.64, 126,187.50 and 51,154.21

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Solution

The fourth proportional to 91,440.64, 126,187.50 and 51,154.21 is: 70,592.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,440.64 : 126,187.50 = 51,154.21 : x
  2. Step 2: Convert to fraction form
    91,440.64/126,187.50 = 51,154.21/x
  3. Step 3: Cross multiply
    91,440.64x = 126,187.50 × 51,154.21
  4. Step 4: Simplify right side
    91,440.64x = 6,455,021,874.38
  5. Step 5: Solve for x
    x = 6,455,021,874.38/91,440.64
  6. Step 6: Final answer
    x = 70,592.48

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1.5x scale

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.