Home / 99,011.28-136,635.89-53,689.23

Finding the Fourth Proportional to 99,011.28, 136,635.89 and 53,689.23

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Solution

The fourth proportional to 99,011.28, 136,635.89 and 53,689.23 is: 74,091.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,011.28 : 136,635.89 = 53,689.23 : x
  2. Step 2: Convert to fraction form
    99,011.28/136,635.89 = 53,689.23/x
  3. Step 3: Cross multiply
    99,011.28x = 136,635.89 × 53,689.23
  4. Step 4: Simplify right side
    99,011.28x = 7,335,875,456.02
  5. Step 5: Solve for x
    x = 7,335,875,456.02/99,011.28
  6. Step 6: Final answer
    x = 74,091.31

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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.