Home / 40,370.04-55,730.85-31,275.18

Finding the Fourth Proportional to 40,370.04, 55,730.85 and 31,275.18

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Solution

The fourth proportional to 40,370.04, 55,730.85 and 31,275.18 is: 43,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,370.04 : 55,730.85 = 31,275.18 : x
  2. Step 2: Convert to fraction form
    40,370.04/55,730.85 = 31,275.18/x
  3. Step 3: Cross multiply
    40,370.04x = 55,730.85 × 31,275.18
  4. Step 4: Simplify right side
    40,370.04x = 1,742,992,365.30
  5. Step 5: Solve for x
    x = 1,742,992,365.30/40,370.04
  6. Step 6: Final answer
    x = 43,175.39

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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.