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Finding the Fourth Proportional to 93,649.05, 129,149.10 and 63,478.17

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Solution

The fourth proportional to 93,649.05, 129,149.10 and 63,478.17 is: 87,541.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,649.05 : 129,149.10 = 63,478.17 : x
  2. Step 2: Convert to fraction form
    93,649.05/129,149.10 = 63,478.17/x
  3. Step 3: Cross multiply
    93,649.05x = 129,149.10 × 63,478.17
  4. Step 4: Simplify right side
    93,649.05x = 8,198,148,525.15
  5. Step 5: Solve for x
    x = 8,198,148,525.15/93,649.05
  6. Step 6: Final answer
    x = 87,541.18

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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.