Home / 52,200.08-72,070.80-30,986.16

Finding the Fourth Proportional to 52,200.08, 72,070.80 and 30,986.16

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Solution

The fourth proportional to 52,200.08, 72,070.80 and 30,986.16 is: 42,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,200.08 : 72,070.80 = 30,986.16 : x
  2. Step 2: Convert to fraction form
    52,200.08/72,070.80 = 30,986.16/x
  3. Step 3: Cross multiply
    52,200.08x = 72,070.80 × 30,986.16
  4. Step 4: Simplify right side
    52,200.08x = 2,233,197,340.13
  5. Step 5: Solve for x
    x = 2,233,197,340.13/52,200.08
  6. Step 6: Final answer
    x = 42,781.49

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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.