Home / 85,012.76-117,316.02-58,154.36

Finding the Fourth Proportional to 85,012.76, 117,316.02 and 58,154.36

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Solution

The fourth proportional to 85,012.76, 117,316.02 and 58,154.36 is: 80,251.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.76 : 117,316.02 = 58,154.36 : x
  2. Step 2: Convert to fraction form
    85,012.76/117,316.02 = 58,154.36/x
  3. Step 3: Cross multiply
    85,012.76x = 117,316.02 × 58,154.36
  4. Step 4: Simplify right side
    85,012.76x = 6,822,438,060.85
  5. Step 5: Solve for x
    x = 6,822,438,060.85/85,012.76
  6. Step 6: Final answer
    x = 80,251.93

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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.