Home / 56,379.74-77,803.16-30,885.89

Finding the Fourth Proportional to 56,379.74, 77,803.16 and 30,885.89

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Solution

The fourth proportional to 56,379.74, 77,803.16 and 30,885.89 is: 42,622.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,379.74 : 77,803.16 = 30,885.89 : x
  2. Step 2: Convert to fraction form
    56,379.74/77,803.16 = 30,885.89/x
  3. Step 3: Cross multiply
    56,379.74x = 77,803.16 × 30,885.89
  4. Step 4: Simplify right side
    56,379.74x = 2,403,019,297.97
  5. Step 5: Solve for x
    x = 2,403,019,297.97/56,379.74
  6. Step 6: Final answer
    x = 42,622.04

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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.