Home / 52,076.32-78,142.02-28,400.92

Finding the Fourth Proportional to 52,076.32, 78,142.02 and 28,400.92

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Solution

The fourth proportional to 52,076.32, 78,142.02 and 28,400.92 is: 42,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,076.32 : 78,142.02 = 28,400.92 : x
  2. Step 2: Convert to fraction form
    52,076.32/78,142.02 = 28,400.92/x
  3. Step 3: Cross multiply
    52,076.32x = 78,142.02 × 28,400.92
  4. Step 4: Simplify right side
    52,076.32x = 2,219,305,258.66
  5. Step 5: Solve for x
    x = 2,219,305,258.66/52,076.32
  6. Step 6: Final answer
    x = 42,616.40

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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.