Home / 71,746.32-99,011.25-39,918.18

Finding the Fourth Proportional to 71,746.32, 99,011.25 and 39,918.18

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Solution

The fourth proportional to 71,746.32, 99,011.25 and 39,918.18 is: 55,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,746.32 : 99,011.25 = 39,918.18 : x
  2. Step 2: Convert to fraction form
    71,746.32/99,011.25 = 39,918.18/x
  3. Step 3: Cross multiply
    71,746.32x = 99,011.25 × 39,918.18
  4. Step 4: Simplify right side
    71,746.32x = 3,952,348,899.53
  5. Step 5: Solve for x
    x = 3,952,348,899.53/71,746.32
  6. Step 6: Final answer
    x = 55,087.83

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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.