Home / 86,143.80-118,870.02-48,417.24

Finding the Fourth Proportional to 86,143.80, 118,870.02 and 48,417.24

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Solution

The fourth proportional to 86,143.80, 118,870.02 and 48,417.24 is: 66,811.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,143.80 : 118,870.02 = 48,417.24 : x
  2. Step 2: Convert to fraction form
    86,143.80/118,870.02 = 48,417.24/x
  3. Step 3: Cross multiply
    86,143.80x = 118,870.02 × 48,417.24
  4. Step 4: Simplify right side
    86,143.80x = 5,755,358,287.14
  5. Step 5: Solve for x
    x = 5,755,358,287.14/86,143.80
  6. Step 6: Final answer
    x = 66,811.06

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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.