Home / 51,168.10-70,617.17-28,510.78

Finding the Fourth Proportional to 51,168.10, 70,617.17 and 28,510.78

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Solution

The fourth proportional to 51,168.10, 70,617.17 and 28,510.78 is: 39,347.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,168.10 : 70,617.17 = 28,510.78 : x
  2. Step 2: Convert to fraction form
    51,168.10/70,617.17 = 28,510.78/x
  3. Step 3: Cross multiply
    51,168.10x = 70,617.17 × 28,510.78
  4. Step 4: Simplify right side
    51,168.10x = 2,013,350,598.09
  5. Step 5: Solve for x
    x = 2,013,350,598.09/51,168.10
  6. Step 6: Final answer
    x = 39,347.77

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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.