Home / 84,510.18-126,772.20-28,350.81

Finding the Fourth Proportional to 84,510.18, 126,772.20 and 28,350.81

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Solution

The fourth proportional to 84,510.18, 126,772.20 and 28,350.81 is: 42,528.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,510.18 : 126,772.20 = 28,350.81 : x
  2. Step 2: Convert to fraction form
    84,510.18/126,772.20 = 28,350.81/x
  3. Step 3: Cross multiply
    84,510.18x = 126,772.20 × 28,350.81
  4. Step 4: Simplify right side
    84,510.18x = 3,594,094,555.48
  5. Step 5: Solve for x
    x = 3,594,094,555.48/84,510.18
  6. Step 6: Final answer
    x = 42,528.54

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1.5x scale

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.