Home / 78,588.95-108,507.06-73,569.78

Finding the Fourth Proportional to 78,588.95, 108,507.06 and 73,569.78

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Solution

The fourth proportional to 78,588.95, 108,507.06 and 73,569.78 is: 101,577.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,588.95 : 108,507.06 = 73,569.78 : x
  2. Step 2: Convert to fraction form
    78,588.95/108,507.06 = 73,569.78/x
  3. Step 3: Cross multiply
    78,588.95x = 108,507.06 × 73,569.78
  4. Step 4: Simplify right side
    78,588.95x = 7,982,840,532.65
  5. Step 5: Solve for x
    x = 7,982,840,532.65/78,588.95
  6. Step 6: Final answer
    x = 101,577.14

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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.