Home / 56,618.36-78,134.33-31,125.80

Finding the Fourth Proportional to 56,618.36, 78,134.33 and 31,125.80

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Solution

The fourth proportional to 56,618.36, 78,134.33 and 31,125.80 is: 42,954.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,618.36 : 78,134.33 = 31,125.80 : x
  2. Step 2: Convert to fraction form
    56,618.36/78,134.33 = 31,125.80/x
  3. Step 3: Cross multiply
    56,618.36x = 78,134.33 × 31,125.80
  4. Step 4: Simplify right side
    56,618.36x = 2,431,993,099.14
  5. Step 5: Solve for x
    x = 2,431,993,099.14/56,618.36
  6. Step 6: Final answer
    x = 42,954.14

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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.