Home / 52,269.11-72,128.64-28,395.71

Finding the Fourth Proportional to 52,269.11, 72,128.64 and 28,395.71

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Solution

The fourth proportional to 52,269.11, 72,128.64 and 28,395.71 is: 39,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,269.11 : 72,128.64 = 28,395.71 : x
  2. Step 2: Convert to fraction form
    52,269.11/72,128.64 = 28,395.71/x
  3. Step 3: Cross multiply
    52,269.11x = 72,128.64 × 28,395.71
  4. Step 4: Simplify right side
    52,269.11x = 2,048,143,944.13
  5. Step 5: Solve for x
    x = 2,048,143,944.13/52,269.11
  6. Step 6: Final answer
    x = 39,184.60

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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.