Home / 65,713.20-98,569.80-54,632.40

Finding the Fourth Proportional to 65,713.20, 98,569.80 and 54,632.40

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Solution

The fourth proportional to 65,713.20, 98,569.80 and 54,632.40 is: 81,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,713.20 : 98,569.80 = 54,632.40 : x
  2. Step 2: Convert to fraction form
    65,713.20/98,569.80 = 54,632.40/x
  3. Step 3: Cross multiply
    65,713.20x = 98,569.80 × 54,632.40
  4. Step 4: Simplify right side
    65,713.20x = 5,385,104,741.52
  5. Step 5: Solve for x
    x = 5,385,104,741.52/65,713.20
  6. Step 6: Final answer
    x = 81,948.60

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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.