Home / 52,263.76-72,121.26-28,390.40

Finding the Fourth Proportional to 52,263.76, 72,121.26 and 28,390.40

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Solution

The fourth proportional to 52,263.76, 72,121.26 and 28,390.40 is: 39,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,263.76 : 72,121.26 = 28,390.40 : x
  2. Step 2: Convert to fraction form
    52,263.76/72,121.26 = 28,390.40/x
  3. Step 3: Cross multiply
    52,263.76x = 72,121.26 × 28,390.40
  4. Step 4: Simplify right side
    52,263.76x = 2,047,551,419.90
  5. Step 5: Solve for x
    x = 2,047,551,419.90/52,263.76
  6. Step 6: Final answer
    x = 39,177.27

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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.