Home / 56,315.75-77,715.74-31,166.87

Finding the Fourth Proportional to 56,315.75, 77,715.74 and 31,166.87

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Solution

The fourth proportional to 56,315.75, 77,715.74 and 31,166.87 is: 43,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,315.75 : 77,715.74 = 31,166.87 : x
  2. Step 2: Convert to fraction form
    56,315.75/77,715.74 = 31,166.87/x
  3. Step 3: Cross multiply
    56,315.75x = 77,715.74 × 31,166.87
  4. Step 4: Simplify right side
    56,315.75x = 2,422,156,209.70
  5. Step 5: Solve for x
    x = 2,422,156,209.70/56,315.75
  6. Step 6: Final answer
    x = 43,010.28

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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.