Home / 56,707.76-78,257.00-31,216.68

Finding the Fourth Proportional to 56,707.76, 78,257.00 and 31,216.68

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Solution

The fourth proportional to 56,707.76, 78,257.00 and 31,216.68 is: 43,079.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,707.76 : 78,257.00 = 31,216.68 : x
  2. Step 2: Convert to fraction form
    56,707.76/78,257.00 = 31,216.68/x
  3. Step 3: Cross multiply
    56,707.76x = 78,257.00 × 31,216.68
  4. Step 4: Simplify right side
    56,707.76x = 2,442,923,804.80
  5. Step 5: Solve for x
    x = 2,442,923,804.80/56,707.76
  6. Step 6: Final answer
    x = 43,079.18

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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.