Home / 57,139.04-78,856.34-32,947.77

Finding the Fourth Proportional to 57,139.04, 78,856.34 and 32,947.77

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Solution

The fourth proportional to 57,139.04, 78,856.34 and 32,947.77 is: 45,470.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,139.04 : 78,856.34 = 32,947.77 : x
  2. Step 2: Convert to fraction form
    57,139.04/78,856.34 = 32,947.77/x
  3. Step 3: Cross multiply
    57,139.04x = 78,856.34 × 32,947.77
  4. Step 4: Simplify right side
    57,139.04x = 2,598,140,388.62
  5. Step 5: Solve for x
    x = 2,598,140,388.62/57,139.04
  6. Step 6: Final answer
    x = 45,470.50

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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.