Home / 85,900.50-118,542.69-48,186.90

Finding the Fourth Proportional to 85,900.50, 118,542.69 and 48,186.90

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Solution

The fourth proportional to 85,900.50, 118,542.69 and 48,186.90 is: 66,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,900.50 : 118,542.69 = 48,186.90 : x
  2. Step 2: Convert to fraction form
    85,900.50/118,542.69 = 48,186.90/x
  3. Step 3: Cross multiply
    85,900.50x = 118,542.69 × 48,186.90
  4. Step 4: Simplify right side
    85,900.50x = 5,712,204,748.76
  5. Step 5: Solve for x
    x = 5,712,204,748.76/85,900.50
  6. Step 6: Final answer
    x = 66,497.92

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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.