Home / 93,211.77-128,641.19-57,422.73

Finding the Fourth Proportional to 93,211.77, 128,641.19 and 57,422.73

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Solution

The fourth proportional to 93,211.77, 128,641.19 and 57,422.73 is: 79,248.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,211.77 : 128,641.19 = 57,422.73 : x
  2. Step 2: Convert to fraction form
    93,211.77/128,641.19 = 57,422.73/x
  3. Step 3: Cross multiply
    93,211.77x = 128,641.19 × 57,422.73
  4. Step 4: Simplify right side
    93,211.77x = 7,386,928,033.14
  5. Step 5: Solve for x
    x = 7,386,928,033.14/93,211.77
  6. Step 6: Final answer
    x = 79,248.88

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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.