Home / 56,457.19-77,910.92-31,306.69

Finding the Fourth Proportional to 56,457.19, 77,910.92 and 31,306.69

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Solution

The fourth proportional to 56,457.19, 77,910.92 and 31,306.69 is: 43,203.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,457.19 : 77,910.92 = 31,306.69 : x
  2. Step 2: Convert to fraction form
    56,457.19/77,910.92 = 31,306.69/x
  3. Step 3: Cross multiply
    56,457.19x = 77,910.92 × 31,306.69
  4. Step 4: Simplify right side
    56,457.19x = 2,439,132,473.97
  5. Step 5: Solve for x
    x = 2,439,132,473.97/56,457.19
  6. Step 6: Final answer
    x = 43,203.23

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1.5x scale

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.