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Finding the Fourth Proportional to 55,528, 83,300.66 and 18,079.23

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Solution

The fourth proportional to 55,528, 83,300.66 and 18,079.23 is: 27,121.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,528 : 83,300.66 = 18,079.23 : x
  2. Step 2: Convert to fraction form
    55,528/83,300.66 = 18,079.23/x
  3. Step 3: Cross multiply
    55,528x = 83,300.66 × 18,079.23
  4. Step 4: Simplify right side
    55,528x = 1,506,011,791.29
  5. Step 5: Solve for x
    x = 1,506,011,791.29/55,528
  6. Step 6: Final answer
    x = 27,121.66

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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.