Home / 78,679.32-118,036.26-23,279.64

Finding the Fourth Proportional to 78,679.32, 118,036.26 and 23,279.64

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Solution

The fourth proportional to 78,679.32, 118,036.26 and 23,279.64 is: 34,924.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,679.32 : 118,036.26 = 23,279.64 : x
  2. Step 2: Convert to fraction form
    78,679.32/118,036.26 = 23,279.64/x
  3. Step 3: Cross multiply
    78,679.32x = 118,036.26 × 23,279.64
  4. Step 4: Simplify right side
    78,679.32x = 2,747,841,639.75
  5. Step 5: Solve for x
    x = 2,747,841,639.75/78,679.32
  6. Step 6: Final answer
    x = 34,924.57

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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.