Home / 56,379.47-77,803.43-30,885.80

Finding the Fourth Proportional to 56,379.47, 77,803.43 and 30,885.80

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Solution

The fourth proportional to 56,379.47, 77,803.43 and 30,885.80 is: 42,622.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,379.47 : 77,803.43 = 30,885.80 : x
  2. Step 2: Convert to fraction form
    56,379.47/77,803.43 = 30,885.80/x
  3. Step 3: Cross multiply
    56,379.47x = 77,803.43 × 30,885.80
  4. Step 4: Simplify right side
    56,379.47x = 2,403,021,178.29
  5. Step 5: Solve for x
    x = 2,403,021,178.29/56,379.47
  6. Step 6: Final answer
    x = 42,622.27

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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.