Home / 85,319.60-117,748.49-47,082.74

Finding the Fourth Proportional to 85,319.60, 117,748.49 and 47,082.74

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Solution

The fourth proportional to 85,319.60, 117,748.49 and 47,082.74 is: 64,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,319.60 : 117,748.49 = 47,082.74 : x
  2. Step 2: Convert to fraction form
    85,319.60/117,748.49 = 47,082.74/x
  3. Step 3: Cross multiply
    85,319.60x = 117,748.49 × 47,082.74
  4. Step 4: Simplify right side
    85,319.60x = 5,543,920,715.91
  5. Step 5: Solve for x
    x = 5,543,920,715.91/85,319.60
  6. Step 6: Final answer
    x = 64,978.28

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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.