Home / 93,872.16-129,544.92-56,139.12

Finding the Fourth Proportional to 93,872.16, 129,544.92 and 56,139.12

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Solution

The fourth proportional to 93,872.16, 129,544.92 and 56,139.12 is: 77,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,872.16 : 129,544.92 = 56,139.12 : x
  2. Step 2: Convert to fraction form
    93,872.16/129,544.92 = 56,139.12/x
  3. Step 3: Cross multiply
    93,872.16x = 129,544.92 × 56,139.12
  4. Step 4: Simplify right side
    93,872.16x = 7,272,537,809.27
  5. Step 5: Solve for x
    x = 7,272,537,809.27/93,872.16
  6. Step 6: Final answer
    x = 77,472.79

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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.