Home / 56,471.24-77,929.76-30,977.08

Finding the Fourth Proportional to 56,471.24, 77,929.76 and 30,977.08

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Solution

The fourth proportional to 56,471.24, 77,929.76 and 30,977.08 is: 42,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,471.24 : 77,929.76 = 30,977.08 : x
  2. Step 2: Convert to fraction form
    56,471.24/77,929.76 = 30,977.08/x
  3. Step 3: Cross multiply
    56,471.24x = 77,929.76 × 30,977.08
  4. Step 4: Simplify right side
    56,471.24x = 2,414,036,409.90
  5. Step 5: Solve for x
    x = 2,414,036,409.90/56,471.24
  6. Step 6: Final answer
    x = 42,748.07

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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.