Home / 78,681.95-117,938.88-44,875.18

Finding the Fourth Proportional to 78,681.95, 117,938.88 and 44,875.18

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Solution

The fourth proportional to 78,681.95, 117,938.88 and 44,875.18 is: 67,264.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,681.95 : 117,938.88 = 44,875.18 : x
  2. Step 2: Convert to fraction form
    78,681.95/117,938.88 = 44,875.18/x
  3. Step 3: Cross multiply
    78,681.95x = 117,938.88 × 44,875.18
  4. Step 4: Simplify right side
    78,681.95x = 5,292,527,654.93
  5. Step 5: Solve for x
    x = 5,292,527,654.93/78,681.95
  6. Step 6: Final answer
    x = 67,264.83

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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.