Home / 56,616.48-78,125.99-31,121.46

Finding the Fourth Proportional to 56,616.48, 78,125.99 and 31,121.46

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Solution

The fourth proportional to 56,616.48, 78,125.99 and 31,121.46 is: 42,945.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,616.48 : 78,125.99 = 31,121.46 : x
  2. Step 2: Convert to fraction form
    56,616.48/78,125.99 = 31,121.46/x
  3. Step 3: Cross multiply
    56,616.48x = 78,125.99 × 31,121.46
  4. Step 4: Simplify right side
    56,616.48x = 2,431,394,717.14
  5. Step 5: Solve for x
    x = 2,431,394,717.14/56,616.48
  6. Step 6: Final answer
    x = 42,945.00

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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.