Home / 86,123.06-118,860.75-48,397.28

Finding the Fourth Proportional to 86,123.06, 118,860.75 and 48,397.28

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Solution

The fourth proportional to 86,123.06, 118,860.75 and 48,397.28 is: 66,794.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,123.06 : 118,860.75 = 48,397.28 : x
  2. Step 2: Convert to fraction form
    86,123.06/118,860.75 = 48,397.28/x
  3. Step 3: Cross multiply
    86,123.06x = 118,860.75 × 48,397.28
  4. Step 4: Simplify right side
    86,123.06x = 5,752,536,998.76
  5. Step 5: Solve for x
    x = 5,752,536,998.76/86,123.06
  6. Step 6: Final answer
    x = 66,794.39

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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.