Home / 84,643.11-126,855.31-40,283.46

Finding the Fourth Proportional to 84,643.11, 126,855.31 and 40,283.46

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Solution

The fourth proportional to 84,643.11, 126,855.31 and 40,283.46 is: 60,373.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,643.11 : 126,855.31 = 40,283.46 : x
  2. Step 2: Convert to fraction form
    84,643.11/126,855.31 = 40,283.46/x
  3. Step 3: Cross multiply
    84,643.11x = 126,855.31 × 40,283.46
  4. Step 4: Simplify right side
    84,643.11x = 5,110,169,970.48
  5. Step 5: Solve for x
    x = 5,110,169,970.48/84,643.11
  6. Step 6: Final answer
    x = 60,373.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.