Home / 56,723.76-78,274.08-31,574.88

Finding the Fourth Proportional to 56,723.76, 78,274.08 and 31,574.88

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Solution

The fourth proportional to 56,723.76, 78,274.08 and 31,574.88 is: 43,570.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,723.76 : 78,274.08 = 31,574.88 : x
  2. Step 2: Convert to fraction form
    56,723.76/78,274.08 = 31,574.88/x
  3. Step 3: Cross multiply
    56,723.76x = 78,274.08 × 31,574.88
  4. Step 4: Simplify right side
    56,723.76x = 2,471,494,683.11
  5. Step 5: Solve for x
    x = 2,471,494,683.11/56,723.76
  6. Step 6: Final answer
    x = 43,570.71

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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.