Home / 56,660.67-78,192.81-31,168.08

Finding the Fourth Proportional to 56,660.67, 78,192.81 and 31,168.08

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Solution

The fourth proportional to 56,660.67, 78,192.81 and 31,168.08 is: 43,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,660.67 : 78,192.81 = 31,168.08 : x
  2. Step 2: Convert to fraction form
    56,660.67/78,192.81 = 31,168.08/x
  3. Step 3: Cross multiply
    56,660.67x = 78,192.81 × 31,168.08
  4. Step 4: Simplify right side
    56,660.67x = 2,437,119,757.50
  5. Step 5: Solve for x
    x = 2,437,119,757.50/56,660.67
  6. Step 6: Final answer
    x = 43,012.55

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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.