Home / 78,863.46-118,287.18-26,267.28

Finding the Fourth Proportional to 78,863.46, 118,287.18 and 26,267.28

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Solution

The fourth proportional to 78,863.46, 118,287.18 and 26,267.28 is: 39,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,863.46 : 118,287.18 = 26,267.28 : x
  2. Step 2: Convert to fraction form
    78,863.46/118,287.18 = 26,267.28/x
  3. Step 3: Cross multiply
    78,863.46x = 118,287.18 × 26,267.28
  4. Step 4: Simplify right side
    78,863.46x = 3,107,082,477.47
  5. Step 5: Solve for x
    x = 3,107,082,477.47/78,863.46
  6. Step 6: Final answer
    x = 39,398.25

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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.