Home / 55,360.80-76,397.04-30,209.76

Finding the Fourth Proportional to 55,360.80, 76,397.04 and 30,209.76

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Solution

The fourth proportional to 55,360.80, 76,397.04 and 30,209.76 is: 41,689.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,360.80 : 76,397.04 = 30,209.76 : x
  2. Step 2: Convert to fraction form
    55,360.80/76,397.04 = 30,209.76/x
  3. Step 3: Cross multiply
    55,360.80x = 76,397.04 × 30,209.76
  4. Step 4: Simplify right side
    55,360.80x = 2,307,936,243.11
  5. Step 5: Solve for x
    x = 2,307,936,243.11/55,360.80
  6. Step 6: Final answer
    x = 41,689.00

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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.