Home / 55,275.04-76,281.62-31,405.76

Finding the Fourth Proportional to 55,275.04, 76,281.62 and 31,405.76

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Solution

The fourth proportional to 55,275.04, 76,281.62 and 31,405.76 is: 43,341.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.04 : 76,281.62 = 31,405.76 : x
  2. Step 2: Convert to fraction form
    55,275.04/76,281.62 = 31,405.76/x
  3. Step 3: Cross multiply
    55,275.04x = 76,281.62 × 31,405.76
  4. Step 4: Simplify right side
    55,275.04x = 2,395,681,997.75
  5. Step 5: Solve for x
    x = 2,395,681,997.75/55,275.04
  6. Step 6: Final answer
    x = 43,341.12

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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.