Home / 81,317.61-112,218.87-45,510.95

Finding the Fourth Proportional to 81,317.61, 112,218.87 and 45,510.95

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Solution

The fourth proportional to 81,317.61, 112,218.87 and 45,510.95 is: 62,805.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,317.61 : 112,218.87 = 45,510.95 : x
  2. Step 2: Convert to fraction form
    81,317.61/112,218.87 = 45,510.95/x
  3. Step 3: Cross multiply
    81,317.61x = 112,218.87 × 45,510.95
  4. Step 4: Simplify right side
    81,317.61x = 5,107,186,820.53
  5. Step 5: Solve for x
    x = 5,107,186,820.53/81,317.61
  6. Step 6: Final answer
    x = 62,805.42

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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.