Home / 52,140.44-71,952-30,907.08

Finding the Fourth Proportional to 52,140.44, 71,952 and 30,907.08

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Solution

The fourth proportional to 52,140.44, 71,952 and 30,907.08 is: 42,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,140.44 : 71,952 = 30,907.08 : x
  2. Step 2: Convert to fraction form
    52,140.44/71,952 = 30,907.08/x
  3. Step 3: Cross multiply
    52,140.44x = 71,952 × 30,907.08
  4. Step 4: Simplify right side
    52,140.44x = 2,223,826,220.16
  5. Step 5: Solve for x
    x = 2,223,826,220.16/52,140.44
  6. Step 6: Final answer
    x = 42,650.70

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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.