Home / 81,875.10-122,812.65-22,710.77

Finding the Fourth Proportional to 81,875.10, 122,812.65 and 22,710.77

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Solution

The fourth proportional to 81,875.10, 122,812.65 and 22,710.77 is: 34,066.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,875.10 : 122,812.65 = 22,710.77 : x
  2. Step 2: Convert to fraction form
    81,875.10/122,812.65 = 22,710.77/x
  3. Step 3: Cross multiply
    81,875.10x = 122,812.65 × 22,710.77
  4. Step 4: Simplify right side
    81,875.10x = 2,789,169,929.57
  5. Step 5: Solve for x
    x = 2,789,169,929.57/81,875.10
  6. Step 6: Final answer
    x = 34,066.16

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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.