Home / 78,916.97-118,381.61-26,326.46

Finding the Fourth Proportional to 78,916.97, 118,381.61 and 26,326.46

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Solution

The fourth proportional to 78,916.97, 118,381.61 and 26,326.46 is: 39,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,916.97 : 118,381.61 = 26,326.46 : x
  2. Step 2: Convert to fraction form
    78,916.97/118,381.61 = 26,326.46/x
  3. Step 3: Cross multiply
    78,916.97x = 118,381.61 × 26,326.46
  4. Step 4: Simplify right side
    78,916.97x = 3,116,569,082.17
  5. Step 5: Solve for x
    x = 3,116,569,082.17/78,916.97
  6. Step 6: Final answer
    x = 39,491.75

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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.