Home / 56,381.45-77,806.53-31,230.95

Finding the Fourth Proportional to 56,381.45, 77,806.53 and 31,230.95

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Solution

The fourth proportional to 56,381.45, 77,806.53 and 31,230.95 is: 43,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,381.45 : 77,806.53 = 31,230.95 : x
  2. Step 2: Convert to fraction form
    56,381.45/77,806.53 = 31,230.95/x
  3. Step 3: Cross multiply
    56,381.45x = 77,806.53 × 31,230.95
  4. Step 4: Simplify right side
    56,381.45x = 2,429,971,459.07
  5. Step 5: Solve for x
    x = 2,429,971,459.07/56,381.45
  6. Step 6: Final answer
    x = 43,098.78

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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.