Home / 55,275.60-76,280.04-30,124.88

Finding the Fourth Proportional to 55,275.60, 76,280.04 and 30,124.88

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Solution

The fourth proportional to 55,275.60, 76,280.04 and 30,124.88 is: 41,572.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.60 : 76,280.04 = 30,124.88 : x
  2. Step 2: Convert to fraction form
    55,275.60/76,280.04 = 30,124.88/x
  3. Step 3: Cross multiply
    55,275.60x = 76,280.04 × 30,124.88
  4. Step 4: Simplify right side
    55,275.60x = 2,297,927,051.40
  5. Step 5: Solve for x
    x = 2,297,927,051.40/55,275.60
  6. Step 6: Final answer
    x = 41,572.18

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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.