Home / 55,117.30-82,719.15-25,538.80

Finding the Fourth Proportional to 55,117.30, 82,719.15 and 25,538.80

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Solution

The fourth proportional to 55,117.30, 82,719.15 and 25,538.80 is: 38,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,117.30 : 82,719.15 = 25,538.80 : x
  2. Step 2: Convert to fraction form
    55,117.30/82,719.15 = 25,538.80/x
  3. Step 3: Cross multiply
    55,117.30x = 82,719.15 × 25,538.80
  4. Step 4: Simplify right side
    55,117.30x = 2,112,547,828.02
  5. Step 5: Solve for x
    x = 2,112,547,828.02/55,117.30
  6. Step 6: Final answer
    x = 38,328.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.