Home / 69,038.19-103,432.14-31,629.56

Finding the Fourth Proportional to 69,038.19, 103,432.14 and 31,629.56

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Solution

The fourth proportional to 69,038.19, 103,432.14 and 31,629.56 is: 47,387.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,038.19 : 103,432.14 = 31,629.56 : x
  2. Step 2: Convert to fraction form
    69,038.19/103,432.14 = 31,629.56/x
  3. Step 3: Cross multiply
    69,038.19x = 103,432.14 × 31,629.56
  4. Step 4: Simplify right side
    69,038.19x = 3,271,512,560.90
  5. Step 5: Solve for x
    x = 3,271,512,560.90/69,038.19
  6. Step 6: Final answer
    x = 47,387.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.