Home / 86,385.29-119,208.02-48,142.80

Finding the Fourth Proportional to 86,385.29, 119,208.02 and 48,142.80

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Solution

The fourth proportional to 86,385.29, 119,208.02 and 48,142.80 is: 66,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,385.29 : 119,208.02 = 48,142.80 : x
  2. Step 2: Convert to fraction form
    86,385.29/119,208.02 = 48,142.80/x
  3. Step 3: Cross multiply
    86,385.29x = 119,208.02 × 48,142.80
  4. Step 4: Simplify right side
    86,385.29x = 5,739,007,624.54
  5. Step 5: Solve for x
    x = 5,739,007,624.54/86,385.29
  6. Step 6: Final answer
    x = 66,435.01

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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.