Home / 56,605.22-78,115.92-31,114.37

Finding the Fourth Proportional to 56,605.22, 78,115.92 and 31,114.37

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Solution

The fourth proportional to 56,605.22, 78,115.92 and 31,114.37 is: 42,938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,605.22 : 78,115.92 = 31,114.37 : x
  2. Step 2: Convert to fraction form
    56,605.22/78,115.92 = 31,114.37/x
  3. Step 3: Cross multiply
    56,605.22x = 78,115.92 × 31,114.37
  4. Step 4: Simplify right side
    56,605.22x = 2,430,527,637.77
  5. Step 5: Solve for x
    x = 2,430,527,637.77/56,605.22
  6. Step 6: Final answer
    x = 42,938.22

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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.