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Finding the Fourth Proportional to 70,537.78, 97,342.08 and 38,708.68

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Solution

The fourth proportional to 70,537.78, 97,342.08 and 38,708.68 is: 53,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,537.78 : 97,342.08 = 38,708.68 : x
  2. Step 2: Convert to fraction form
    70,537.78/97,342.08 = 38,708.68/x
  3. Step 3: Cross multiply
    70,537.78x = 97,342.08 × 38,708.68
  4. Step 4: Simplify right side
    70,537.78x = 3,767,983,425.25
  5. Step 5: Solve for x
    x = 3,767,983,425.25/70,537.78
  6. Step 6: Final answer
    x = 53,417.95

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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.