Home / 78,340.25-108,005.14-62,261.25

Finding the Fourth Proportional to 78,340.25, 108,005.14 and 62,261.25

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Solution

The fourth proportional to 78,340.25, 108,005.14 and 62,261.25 is: 85,837.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,340.25 : 108,005.14 = 62,261.25 : x
  2. Step 2: Convert to fraction form
    78,340.25/108,005.14 = 62,261.25/x
  3. Step 3: Cross multiply
    78,340.25x = 108,005.14 × 62,261.25
  4. Step 4: Simplify right side
    78,340.25x = 6,724,535,022.83
  5. Step 5: Solve for x
    x = 6,724,535,022.83/78,340.25
  6. Step 6: Final answer
    x = 85,837.55

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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.