Home / 40,409.20-55,779.66-34,721.20

Finding the Fourth Proportional to 40,409.20, 55,779.66 and 34,721.20

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Solution

The fourth proportional to 40,409.20, 55,779.66 and 34,721.20 is: 47,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,409.20 : 55,779.66 = 34,721.20 : x
  2. Step 2: Convert to fraction form
    40,409.20/55,779.66 = 34,721.20/x
  3. Step 3: Cross multiply
    40,409.20x = 55,779.66 × 34,721.20
  4. Step 4: Simplify right side
    40,409.20x = 1,936,736,730.79
  5. Step 5: Solve for x
    x = 1,936,736,730.79/40,409.20
  6. Step 6: Final answer
    x = 47,928.11

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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.