Home / 78,966.90-118,456.56-26,376.57

Finding the Fourth Proportional to 78,966.90, 118,456.56 and 26,376.57

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Solution

The fourth proportional to 78,966.90, 118,456.56 and 26,376.57 is: 39,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,966.90 : 118,456.56 = 26,376.57 : x
  2. Step 2: Convert to fraction form
    78,966.90/118,456.56 = 26,376.57/x
  3. Step 3: Cross multiply
    78,966.90x = 118,456.56 × 26,376.57
  4. Step 4: Simplify right side
    78,966.90x = 3,124,477,746.80
  5. Step 5: Solve for x
    x = 3,124,477,746.80/78,966.90
  6. Step 6: Final answer
    x = 39,566.93

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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.