Home / 78,269.28-108,010.44-42,459.36

Finding the Fourth Proportional to 78,269.28, 108,010.44 and 42,459.36

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Solution

The fourth proportional to 78,269.28, 108,010.44 and 42,459.36 is: 58,593.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,269.28 : 108,010.44 = 42,459.36 : x
  2. Step 2: Convert to fraction form
    78,269.28/108,010.44 = 42,459.36/x
  3. Step 3: Cross multiply
    78,269.28x = 108,010.44 × 42,459.36
  4. Step 4: Simplify right side
    78,269.28x = 4,586,054,155.72
  5. Step 5: Solve for x
    x = 4,586,054,155.72/78,269.28
  6. Step 6: Final answer
    x = 58,593.28

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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.