Home / 56,070.28-77,376.52-30,919.80

Finding the Fourth Proportional to 56,070.28, 77,376.52 and 30,919.80

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Solution

The fourth proportional to 56,070.28, 77,376.52 and 30,919.80 is: 42,669.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,070.28 : 77,376.52 = 30,919.80 : x
  2. Step 2: Convert to fraction form
    56,070.28/77,376.52 = 30,919.80/x
  3. Step 3: Cross multiply
    56,070.28x = 77,376.52 × 30,919.80
  4. Step 4: Simplify right side
    56,070.28x = 2,392,466,523.10
  5. Step 5: Solve for x
    x = 2,392,466,523.10/56,070.28
  6. Step 6: Final answer
    x = 42,669.07

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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.