Home / 56,359.88-77,776.07-30,518.30

Finding the Fourth Proportional to 56,359.88, 77,776.07 and 30,518.30

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Solution

The fourth proportional to 56,359.88, 77,776.07 and 30,518.30 is: 42,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,359.88 : 77,776.07 = 30,518.30 : x
  2. Step 2: Convert to fraction form
    56,359.88/77,776.07 = 30,518.30/x
  3. Step 3: Cross multiply
    56,359.88x = 77,776.07 × 30,518.30
  4. Step 4: Simplify right side
    56,359.88x = 2,373,593,437.08
  5. Step 5: Solve for x
    x = 2,373,593,437.08/56,359.88
  6. Step 6: Final answer
    x = 42,114.95

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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.