Home / 84,720.06-127,043.18-28,549.70

Finding the Fourth Proportional to 84,720.06, 127,043.18 and 28,549.70

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Solution

The fourth proportional to 84,720.06, 127,043.18 and 28,549.70 is: 42,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,720.06 : 127,043.18 = 28,549.70 : x
  2. Step 2: Convert to fraction form
    84,720.06/127,043.18 = 28,549.70/x
  3. Step 3: Cross multiply
    84,720.06x = 127,043.18 × 28,549.70
  4. Step 4: Simplify right side
    84,720.06x = 3,627,043,898.08
  5. Step 5: Solve for x
    x = 3,627,043,898.08/84,720.06
  6. Step 6: Final answer
    x = 42,812.10

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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.