Home / 53,530.79-80,275.41-28,557.20

Finding the Fourth Proportional to 53,530.79, 80,275.41 and 28,557.20

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Solution

The fourth proportional to 53,530.79, 80,275.41 and 28,557.20 is: 42,824.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,530.79 : 80,275.41 = 28,557.20 : x
  2. Step 2: Convert to fraction form
    53,530.79/80,275.41 = 28,557.20/x
  3. Step 3: Cross multiply
    53,530.79x = 80,275.41 × 28,557.20
  4. Step 4: Simplify right side
    53,530.79x = 2,292,441,139.14
  5. Step 5: Solve for x
    x = 2,292,441,139.14/53,530.79
  6. Step 6: Final answer
    x = 42,824.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.