Home / 52,515.21-72,470.12-28,640.46

Finding the Fourth Proportional to 52,515.21, 72,470.12 and 28,640.46

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Solution

The fourth proportional to 52,515.21, 72,470.12 and 28,640.46 is: 39,523.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,515.21 : 72,470.12 = 28,640.46 : x
  2. Step 2: Convert to fraction form
    52,515.21/72,470.12 = 28,640.46/x
  3. Step 3: Cross multiply
    52,515.21x = 72,470.12 × 28,640.46
  4. Step 4: Simplify right side
    52,515.21x = 2,075,577,429.85
  5. Step 5: Solve for x
    x = 2,075,577,429.85/52,515.21
  6. Step 6: Final answer
    x = 39,523.36

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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.