Home / 78,362.23-108,140.10-42,552.84

Finding the Fourth Proportional to 78,362.23, 108,140.10 and 42,552.84

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Solution

The fourth proportional to 78,362.23, 108,140.10 and 42,552.84 is: 58,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,362.23 : 108,140.10 = 42,552.84 : x
  2. Step 2: Convert to fraction form
    78,362.23/108,140.10 = 42,552.84/x
  3. Step 3: Cross multiply
    78,362.23x = 108,140.10 × 42,552.84
  4. Step 4: Simplify right side
    78,362.23x = 4,601,668,160.12
  5. Step 5: Solve for x
    x = 4,601,668,160.12/78,362.23
  6. Step 6: Final answer
    x = 58,723.04

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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.