Home / 88,068.48-121,515.52-52,270.40

Finding the Fourth Proportional to 88,068.48, 121,515.52 and 52,270.40

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Solution

The fourth proportional to 88,068.48, 121,515.52 and 52,270.40 is: 72,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,068.48 : 121,515.52 = 52,270.40 : x
  2. Step 2: Convert to fraction form
    88,068.48/121,515.52 = 52,270.40/x
  3. Step 3: Cross multiply
    88,068.48x = 121,515.52 × 52,270.40
  4. Step 4: Simplify right side
    88,068.48x = 6,351,664,836.61
  5. Step 5: Solve for x
    x = 6,351,664,836.61/88,068.48
  6. Step 6: Final answer
    x = 72,121.89

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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.