Home / 56,425.63-77,869.36-30,931.97

Finding the Fourth Proportional to 56,425.63, 77,869.36 and 30,931.97

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Solution

The fourth proportional to 56,425.63, 77,869.36 and 30,931.97 is: 42,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,425.63 : 77,869.36 = 30,931.97 : x
  2. Step 2: Convert to fraction form
    56,425.63/77,869.36 = 30,931.97/x
  3. Step 3: Cross multiply
    56,425.63x = 77,869.36 × 30,931.97
  4. Step 4: Simplify right side
    56,425.63x = 2,408,652,707.44
  5. Step 5: Solve for x
    x = 2,408,652,707.44/56,425.63
  6. Step 6: Final answer
    x = 42,687.21

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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.