Home / 72,437.92-99,962.96-40,607.20

Finding the Fourth Proportional to 72,437.92, 99,962.96 and 40,607.20

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Solution

The fourth proportional to 72,437.92, 99,962.96 and 40,607.20 is: 56,037.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,437.92 : 99,962.96 = 40,607.20 : x
  2. Step 2: Convert to fraction form
    72,437.92/99,962.96 = 40,607.20/x
  3. Step 3: Cross multiply
    72,437.92x = 99,962.96 × 40,607.20
  4. Step 4: Simplify right side
    72,437.92x = 4,059,215,909.31
  5. Step 5: Solve for x
    x = 4,059,215,909.31/72,437.92
  6. Step 6: Final answer
    x = 56,037.17

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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.