Home / 52,012.18-71,776.62-28,138.86

Finding the Fourth Proportional to 52,012.18, 71,776.62 and 28,138.86

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Solution

The fourth proportional to 52,012.18, 71,776.62 and 28,138.86 is: 38,831.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,012.18 : 71,776.62 = 28,138.86 : x
  2. Step 2: Convert to fraction form
    52,012.18/71,776.62 = 28,138.86/x
  3. Step 3: Cross multiply
    52,012.18x = 71,776.62 × 28,138.86
  4. Step 4: Simplify right side
    52,012.18x = 2,019,712,261.45
  5. Step 5: Solve for x
    x = 2,019,712,261.45/52,012.18
  6. Step 6: Final answer
    x = 38,831.52

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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.