Home / 78,037.98-107,802.57-62,102.04

Finding the Fourth Proportional to 78,037.98, 107,802.57 and 62,102.04

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Solution

The fourth proportional to 78,037.98, 107,802.57 and 62,102.04 is: 85,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,037.98 : 107,802.57 = 62,102.04 : x
  2. Step 2: Convert to fraction form
    78,037.98/107,802.57 = 62,102.04/x
  3. Step 3: Cross multiply
    78,037.98x = 107,802.57 × 62,102.04
  4. Step 4: Simplify right side
    78,037.98x = 6,694,759,514.24
  5. Step 5: Solve for x
    x = 6,694,759,514.24/78,037.98
  6. Step 6: Final answer
    x = 85,788.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.