Home / 82,881.10-124,321.65-56,442.70

Finding the Fourth Proportional to 82,881.10, 124,321.65 and 56,442.70

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Solution

The fourth proportional to 82,881.10, 124,321.65 and 56,442.70 is: 84,664.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,881.10 : 124,321.65 = 56,442.70 : x
  2. Step 2: Convert to fraction form
    82,881.10/124,321.65 = 56,442.70/x
  3. Step 3: Cross multiply
    82,881.10x = 124,321.65 × 56,442.70
  4. Step 4: Simplify right side
    82,881.10x = 7,017,049,594.46
  5. Step 5: Solve for x
    x = 7,017,049,594.46/82,881.10
  6. Step 6: Final answer
    x = 84,664.05

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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.