Home / 99,689.52-137,570.56-57,248.36

Finding the Fourth Proportional to 99,689.52, 137,570.56 and 57,248.36

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Solution

The fourth proportional to 99,689.52, 137,570.56 and 57,248.36 is: 79,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,689.52 : 137,570.56 = 57,248.36 : x
  2. Step 2: Convert to fraction form
    99,689.52/137,570.56 = 57,248.36/x
  3. Step 3: Cross multiply
    99,689.52x = 137,570.56 × 57,248.36
  4. Step 4: Simplify right side
    99,689.52x = 7,875,688,944.28
  5. Step 5: Solve for x
    x = 7,875,688,944.28/99,689.52
  6. Step 6: Final answer
    x = 79,002.18

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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.