Home / 85,279.29-117,685.88-47,040.18

Finding the Fourth Proportional to 85,279.29, 117,685.88 and 47,040.18

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Solution

The fourth proportional to 85,279.29, 117,685.88 and 47,040.18 is: 64,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,279.29 : 117,685.88 = 47,040.18 : x
  2. Step 2: Convert to fraction form
    85,279.29/117,685.88 = 47,040.18/x
  3. Step 3: Cross multiply
    85,279.29x = 117,685.88 × 47,040.18
  4. Step 4: Simplify right side
    85,279.29x = 5,535,964,978.66
  5. Step 5: Solve for x
    x = 5,535,964,978.66/85,279.29
  6. Step 6: Final answer
    x = 64,915.70

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1.5x scale

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.