Home / 56,392.78-77,818.67-31,240.46

Finding the Fourth Proportional to 56,392.78, 77,818.67 and 31,240.46

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Solution

The fourth proportional to 56,392.78, 77,818.67 and 31,240.46 is: 43,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,392.78 : 77,818.67 = 31,240.46 : x
  2. Step 2: Convert to fraction form
    56,392.78/77,818.67 = 31,240.46/x
  3. Step 3: Cross multiply
    56,392.78x = 77,818.67 × 31,240.46
  4. Step 4: Simplify right side
    56,392.78x = 2,431,091,047.39
  5. Step 5: Solve for x
    x = 2,431,091,047.39/56,392.78
  6. Step 6: Final answer
    x = 43,109.97

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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.