Home / 55,702.16-76,869.60-30,551.12

Finding the Fourth Proportional to 55,702.16, 76,869.60 and 30,551.12

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Solution

The fourth proportional to 55,702.16, 76,869.60 and 30,551.12 is: 42,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,702.16 : 76,869.60 = 30,551.12 : x
  2. Step 2: Convert to fraction form
    55,702.16/76,869.60 = 30,551.12/x
  3. Step 3: Cross multiply
    55,702.16x = 76,869.60 × 30,551.12
  4. Step 4: Simplify right side
    55,702.16x = 2,348,452,373.95
  5. Step 5: Solve for x
    x = 2,348,452,373.95/55,702.16
  6. Step 6: Final answer
    x = 42,160.89

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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.