Home / 70,339.38-97,070.04-38,508.18

Finding the Fourth Proportional to 70,339.38, 97,070.04 and 38,508.18

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Solution

The fourth proportional to 70,339.38, 97,070.04 and 38,508.18 is: 53,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,339.38 : 97,070.04 = 38,508.18 : x
  2. Step 2: Convert to fraction form
    70,339.38/97,070.04 = 38,508.18/x
  3. Step 3: Cross multiply
    70,339.38x = 97,070.04 × 38,508.18
  4. Step 4: Simplify right side
    70,339.38x = 3,737,990,572.93
  5. Step 5: Solve for x
    x = 3,737,990,572.93/70,339.38
  6. Step 6: Final answer
    x = 53,142.22

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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.