Home / 81,776.02-122,407.02-56,326.18

Finding the Fourth Proportional to 81,776.02, 122,407.02 and 56,326.18

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Solution

The fourth proportional to 81,776.02, 122,407.02 and 56,326.18 is: 84,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,776.02 : 122,407.02 = 56,326.18 : x
  2. Step 2: Convert to fraction form
    81,776.02/122,407.02 = 56,326.18/x
  3. Step 3: Cross multiply
    81,776.02x = 122,407.02 × 56,326.18
  4. Step 4: Simplify right side
    81,776.02x = 6,894,719,841.78
  5. Step 5: Solve for x
    x = 6,894,719,841.78/81,776.02
  6. Step 6: Final answer
    x = 84,312.25

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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.