Home / 78,718.68-118,068.30-34,376.04

Finding the Fourth Proportional to 78,718.68, 118,068.30 and 34,376.04

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Solution

The fourth proportional to 78,718.68, 118,068.30 and 34,376.04 is: 51,559.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,718.68 : 118,068.30 = 34,376.04 : x
  2. Step 2: Convert to fraction form
    78,718.68/118,068.30 = 34,376.04/x
  3. Step 3: Cross multiply
    78,718.68x = 118,068.30 × 34,376.04
  4. Step 4: Simplify right side
    78,718.68x = 4,058,720,603.53
  5. Step 5: Solve for x
    x = 4,058,720,603.53/78,718.68
  6. Step 6: Final answer
    x = 51,559.82

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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.