Home / 83,899.96-125,762.14-31,288.28

Finding the Fourth Proportional to 83,899.96, 125,762.14 and 31,288.28

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Solution

The fourth proportional to 83,899.96, 125,762.14 and 31,288.28 is: 46,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,899.96 : 125,762.14 = 31,288.28 : x
  2. Step 2: Convert to fraction form
    83,899.96/125,762.14 = 31,288.28/x
  3. Step 3: Cross multiply
    83,899.96x = 125,762.14 × 31,288.28
  4. Step 4: Simplify right side
    83,899.96x = 3,934,881,049.72
  5. Step 5: Solve for x
    x = 3,934,881,049.72/83,899.96
  6. Step 6: Final answer
    x = 46,899.68

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1.5x scale

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.