Home / 72,402.30-108,603.45-60,155.10

Finding the Fourth Proportional to 72,402.30, 108,603.45 and 60,155.10

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Solution

The fourth proportional to 72,402.30, 108,603.45 and 60,155.10 is: 90,232.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,402.30 : 108,603.45 = 60,155.10 : x
  2. Step 2: Convert to fraction form
    72,402.30/108,603.45 = 60,155.10/x
  3. Step 3: Cross multiply
    72,402.30x = 108,603.45 × 60,155.10
  4. Step 4: Simplify right side
    72,402.30x = 6,533,051,395.10
  5. Step 5: Solve for x
    x = 6,533,051,395.10/72,402.30
  6. Step 6: Final answer
    x = 90,232.65

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1.5x scale

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.