Home / 93,711.65-129,320.42-57,407.45

Finding the Fourth Proportional to 93,711.65, 129,320.42 and 57,407.45

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Solution

The fourth proportional to 93,711.65, 129,320.42 and 57,407.45 is: 79,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,711.65 : 129,320.42 = 57,407.45 : x
  2. Step 2: Convert to fraction form
    93,711.65/129,320.42 = 57,407.45/x
  3. Step 3: Cross multiply
    93,711.65x = 129,320.42 × 57,407.45
  4. Step 4: Simplify right side
    93,711.65x = 7,423,955,401.61
  5. Step 5: Solve for x
    x = 7,423,955,401.61/93,711.65
  6. Step 6: Final answer
    x = 79,221.26

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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.