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Finding the Fourth Proportional to 70,572.57, 97,389.73 and 38,307.83

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Solution

The fourth proportional to 70,572.57, 97,389.73 and 38,307.83 is: 52,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,572.57 : 97,389.73 = 38,307.83 : x
  2. Step 2: Convert to fraction form
    70,572.57/97,389.73 = 38,307.83/x
  3. Step 3: Cross multiply
    70,572.57x = 97,389.73 × 38,307.83
  4. Step 4: Simplify right side
    70,572.57x = 3,730,789,368.29
  5. Step 5: Solve for x
    x = 3,730,789,368.29/70,572.57
  6. Step 6: Final answer
    x = 52,864.58

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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.