Home / 83,400.20-125,113.25-28,009.16

Finding the Fourth Proportional to 83,400.20, 125,113.25 and 28,009.16

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Solution

The fourth proportional to 83,400.20, 125,113.25 and 28,009.16 is: 42,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,400.20 : 125,113.25 = 28,009.16 : x
  2. Step 2: Convert to fraction form
    83,400.20/125,113.25 = 28,009.16/x
  3. Step 3: Cross multiply
    83,400.20x = 125,113.25 × 28,009.16
  4. Step 4: Simplify right side
    83,400.20x = 3,504,316,271.76
  5. Step 5: Solve for x
    x = 3,504,316,271.76/83,400.20
  6. Step 6: Final answer
    x = 42,018.08

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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.