Home / 51,178.23-70,616.61-28,516.66

Finding the Fourth Proportional to 51,178.23, 70,616.61 and 28,516.66

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Solution

The fourth proportional to 51,178.23, 70,616.61 and 28,516.66 is: 39,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,178.23 : 70,616.61 = 28,516.66 : x
  2. Step 2: Convert to fraction form
    51,178.23/70,616.61 = 28,516.66/x
  3. Step 3: Cross multiply
    51,178.23x = 70,616.61 × 28,516.66
  4. Step 4: Simplify right side
    51,178.23x = 2,013,749,681.18
  5. Step 5: Solve for x
    x = 2,013,749,681.18/51,178.23
  6. Step 6: Final answer
    x = 39,347.78

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1.5x scale

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.