Home / 91,627.08-137,419.08-51,663.30

Finding the Fourth Proportional to 91,627.08, 137,419.08 and 51,663.30

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Solution

The fourth proportional to 91,627.08, 137,419.08 and 51,663.30 is: 77,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,627.08 : 137,419.08 = 51,663.30 : x
  2. Step 2: Convert to fraction form
    91,627.08/137,419.08 = 51,663.30/x
  3. Step 3: Cross multiply
    91,627.08x = 137,419.08 × 51,663.30
  4. Step 4: Simplify right side
    91,627.08x = 7,099,523,155.76
  5. Step 5: Solve for x
    x = 7,099,523,155.76/91,627.08
  6. Step 6: Final answer
    x = 77,482.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.