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Finding the Fourth Proportional to 70,458.39, 97,230 and 38,626.59

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Solution

The fourth proportional to 70,458.39, 97,230 and 38,626.59 is: 53,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,458.39 : 97,230 = 38,626.59 : x
  2. Step 2: Convert to fraction form
    70,458.39/97,230 = 38,626.59/x
  3. Step 3: Cross multiply
    70,458.39x = 97,230 × 38,626.59
  4. Step 4: Simplify right side
    70,458.39x = 3,755,663,345.70
  5. Step 5: Solve for x
    x = 3,755,663,345.70/70,458.39
  6. Step 6: Final answer
    x = 53,303.28

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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.