Home / 58,718.12-81,031.46-31,860.81

Finding the Fourth Proportional to 58,718.12, 81,031.46 and 31,860.81

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Solution

The fourth proportional to 58,718.12, 81,031.46 and 31,860.81 is: 43,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,718.12 : 81,031.46 = 31,860.81 : x
  2. Step 2: Convert to fraction form
    58,718.12/81,031.46 = 31,860.81/x
  3. Step 3: Cross multiply
    58,718.12x = 81,031.46 × 31,860.81
  4. Step 4: Simplify right side
    58,718.12x = 2,581,727,791.78
  5. Step 5: Solve for x
    x = 2,581,727,791.78/58,718.12
  6. Step 6: Final answer
    x = 43,968.17

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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.