Home / 55,209.04-76,189.80-31,338.64

Finding the Fourth Proportional to 55,209.04, 76,189.80 and 31,338.64

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Solution

The fourth proportional to 55,209.04, 76,189.80 and 31,338.64 is: 43,248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,209.04 : 76,189.80 = 31,338.64 : x
  2. Step 2: Convert to fraction form
    55,209.04/76,189.80 = 31,338.64/x
  3. Step 3: Cross multiply
    55,209.04x = 76,189.80 × 31,338.64
  4. Step 4: Simplify right side
    55,209.04x = 2,387,684,713.87
  5. Step 5: Solve for x
    x = 2,387,684,713.87/55,209.04
  6. Step 6: Final answer
    x = 43,248.08

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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.