Home / 78,803.10-118,215.45-26,207.10

Finding the Fourth Proportional to 78,803.10, 118,215.45 and 26,207.10

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Solution

The fourth proportional to 78,803.10, 118,215.45 and 26,207.10 is: 39,314.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,803.10 : 118,215.45 = 26,207.10 : x
  2. Step 2: Convert to fraction form
    78,803.10/118,215.45 = 26,207.10/x
  3. Step 3: Cross multiply
    78,803.10x = 118,215.45 × 26,207.10
  4. Step 4: Simplify right side
    78,803.10x = 3,098,084,119.70
  5. Step 5: Solve for x
    x = 3,098,084,119.70/78,803.10
  6. Step 6: Final answer
    x = 39,314.24

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1.5x scale

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.