Home / 58,515.64-80,752.16-31,658.72

Finding the Fourth Proportional to 58,515.64, 80,752.16 and 31,658.72

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Solution

The fourth proportional to 58,515.64, 80,752.16 and 31,658.72 is: 43,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,515.64 : 80,752.16 = 31,658.72 : x
  2. Step 2: Convert to fraction form
    58,515.64/80,752.16 = 31,658.72/x
  3. Step 3: Cross multiply
    58,515.64x = 80,752.16 × 31,658.72
  4. Step 4: Simplify right side
    58,515.64x = 2,556,509,864.54
  5. Step 5: Solve for x
    x = 2,556,509,864.54/58,515.64
  6. Step 6: Final answer
    x = 43,689.35

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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.