Home / 52,268.69-72,129.20-28,395.30

Finding the Fourth Proportional to 52,268.69, 72,129.20 and 28,395.30

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Solution

The fourth proportional to 52,268.69, 72,129.20 and 28,395.30 is: 39,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,268.69 : 72,129.20 = 28,395.30 : x
  2. Step 2: Convert to fraction form
    52,268.69/72,129.20 = 28,395.30/x
  3. Step 3: Cross multiply
    52,268.69x = 72,129.20 × 28,395.30
  4. Step 4: Simplify right side
    52,268.69x = 2,048,130,343.75
  5. Step 5: Solve for x
    x = 2,048,130,343.75/52,268.69
  6. Step 6: Final answer
    x = 39,184.65

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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.