Home / 71,065.32-98,070.14-39,234.28

Finding the Fourth Proportional to 71,065.32, 98,070.14 and 39,234.28

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Solution

The fourth proportional to 71,065.32, 98,070.14 and 39,234.28 is: 54,143.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,065.32 : 98,070.14 = 39,234.28 : x
  2. Step 2: Convert to fraction form
    71,065.32/98,070.14 = 39,234.28/x
  3. Step 3: Cross multiply
    71,065.32x = 98,070.14 × 39,234.28
  4. Step 4: Simplify right side
    71,065.32x = 3,847,711,332.40
  5. Step 5: Solve for x
    x = 3,847,711,332.40/71,065.32
  6. Step 6: Final answer
    x = 54,143.31

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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.