Home / 81,583.61-112,579.47-45,287.00

Finding the Fourth Proportional to 81,583.61, 112,579.47 and 45,287.00

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Solution

The fourth proportional to 81,583.61, 112,579.47 and 45,287.00 is: 62,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,583.61 : 112,579.47 = 45,287.00 : x
  2. Step 2: Convert to fraction form
    81,583.61/112,579.47 = 45,287.00/x
  3. Step 3: Cross multiply
    81,583.61x = 112,579.47 × 45,287.00
  4. Step 4: Simplify right side
    81,583.61x = 5,098,386,317.17
  5. Step 5: Solve for x
    x = 5,098,386,317.17/81,583.61
  6. Step 6: Final answer
    x = 62,492.78

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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.