Home / 65,347.20-98,139.60-57,182.40

Finding the Fourth Proportional to 65,347.20, 98,139.60 and 57,182.40

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Solution

The fourth proportional to 65,347.20, 98,139.60 and 57,182.40 is: 85,877.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,347.20 : 98,139.60 = 57,182.40 : x
  2. Step 2: Convert to fraction form
    65,347.20/98,139.60 = 57,182.40/x
  3. Step 3: Cross multiply
    65,347.20x = 98,139.60 × 57,182.40
  4. Step 4: Simplify right side
    65,347.20x = 5,611,857,863.04
  5. Step 5: Solve for x
    x = 5,611,857,863.04/65,347.20
  6. Step 6: Final answer
    x = 85,877.56

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1.5x scale

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.