Home / 117,510.90-176,363.55-54,428.10

Finding the Fourth Proportional to 117,510.90, 176,363.55 and 54,428.10

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Solution

The fourth proportional to 117,510.90, 176,363.55 and 54,428.10 is: 81,687.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,510.90 : 176,363.55 = 54,428.10 : x
  2. Step 2: Convert to fraction form
    117,510.90/176,363.55 = 54,428.10/x
  3. Step 3: Cross multiply
    117,510.90x = 176,363.55 × 54,428.10
  4. Step 4: Simplify right side
    117,510.90x = 9,599,132,935.76
  5. Step 5: Solve for x
    x = 9,599,132,935.76/117,510.90
  6. Step 6: Final answer
    x = 81,687.17

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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.