Home / 81,479.93-112,231.98-57,565.08

Finding the Fourth Proportional to 81,479.93, 112,231.98 and 57,565.08

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Solution

The fourth proportional to 81,479.93, 112,231.98 and 57,565.08 is: 79,291.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,479.93 : 112,231.98 = 57,565.08 : x
  2. Step 2: Convert to fraction form
    81,479.93/112,231.98 = 57,565.08/x
  3. Step 3: Cross multiply
    81,479.93x = 112,231.98 × 57,565.08
  4. Step 4: Simplify right side
    81,479.93x = 6,460,642,907.26
  5. Step 5: Solve for x
    x = 6,460,642,907.26/81,479.93
  6. Step 6: Final answer
    x = 79,291.22

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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.