Home / 55,463.12-76,528.47-31,589.28

Finding the Fourth Proportional to 55,463.12, 76,528.47 and 31,589.28

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Solution

The fourth proportional to 55,463.12, 76,528.47 and 31,589.28 is: 43,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,463.12 : 76,528.47 = 31,589.28 : x
  2. Step 2: Convert to fraction form
    55,463.12/76,528.47 = 31,589.28/x
  3. Step 3: Cross multiply
    55,463.12x = 76,528.47 × 31,589.28
  4. Step 4: Simplify right side
    55,463.12x = 2,417,479,266.80
  5. Step 5: Solve for x
    x = 2,417,479,266.80/55,463.12
  6. Step 6: Final answer
    x = 43,587.15

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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.