Home / 51,041.15-70,439.97-28,385.20

Finding the Fourth Proportional to 51,041.15, 70,439.97 and 28,385.20

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Solution

The fourth proportional to 51,041.15, 70,439.97 and 28,385.20 is: 39,173.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,041.15 : 70,439.97 = 28,385.20 : x
  2. Step 2: Convert to fraction form
    51,041.15/70,439.97 = 28,385.20/x
  3. Step 3: Cross multiply
    51,041.15x = 70,439.97 × 28,385.20
  4. Step 4: Simplify right side
    51,041.15x = 1,999,452,494.52
  5. Step 5: Solve for x
    x = 1,999,452,494.52/51,041.15
  6. Step 6: Final answer
    x = 39,173.35

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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.