Home / 91,445.84-126,215.01-55,647.38

Finding the Fourth Proportional to 91,445.84, 126,215.01 and 55,647.38

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Solution

The fourth proportional to 91,445.84, 126,215.01 and 55,647.38 is: 76,805.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,445.84 : 126,215.01 = 55,647.38 : x
  2. Step 2: Convert to fraction form
    91,445.84/126,215.01 = 55,647.38/x
  3. Step 3: Cross multiply
    91,445.84x = 126,215.01 × 55,647.38
  4. Step 4: Simplify right side
    91,445.84x = 7,023,534,938.71
  5. Step 5: Solve for x
    x = 7,023,534,938.71/91,445.84
  6. Step 6: Final answer
    x = 76,805.41

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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.