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Finding the Fourth Proportional to 70,461.68, 97,235.86 and 38,630.70

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Solution

The fourth proportional to 70,461.68, 97,235.86 and 38,630.70 is: 53,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,461.68 : 97,235.86 = 38,630.70 : x
  2. Step 2: Convert to fraction form
    70,461.68/97,235.86 = 38,630.70/x
  3. Step 3: Cross multiply
    70,461.68x = 97,235.86 × 38,630.70
  4. Step 4: Simplify right side
    70,461.68x = 3,756,289,336.90
  5. Step 5: Solve for x
    x = 3,756,289,336.90/70,461.68
  6. Step 6: Final answer
    x = 53,309.68

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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.