Home / 57,579.95-86,373.02-18,140.15

Finding the Fourth Proportional to 57,579.95, 86,373.02 and 18,140.15

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Solution

The fourth proportional to 57,579.95, 86,373.02 and 18,140.15 is: 27,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,579.95 : 86,373.02 = 18,140.15 : x
  2. Step 2: Convert to fraction form
    57,579.95/86,373.02 = 18,140.15/x
  3. Step 3: Cross multiply
    57,579.95x = 86,373.02 × 18,140.15
  4. Step 4: Simplify right side
    57,579.95x = 1,566,819,800.04
  5. Step 5: Solve for x
    x = 1,566,819,800.04/57,579.95
  6. Step 6: Final answer
    x = 27,211.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.