Home / 53,531.79-80,276.91-28,558.20

Finding the Fourth Proportional to 53,531.79, 80,276.91 and 28,558.20

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Solution

The fourth proportional to 53,531.79, 80,276.91 and 28,558.20 is: 42,826.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,531.79 : 80,276.91 = 28,558.20 : x
  2. Step 2: Convert to fraction form
    53,531.79/80,276.91 = 28,558.20/x
  3. Step 3: Cross multiply
    53,531.79x = 80,276.91 × 28,558.20
  4. Step 4: Simplify right side
    53,531.79x = 2,292,564,051.16
  5. Step 5: Solve for x
    x = 2,292,564,051.16/53,531.79
  6. Step 6: Final answer
    x = 42,826.22

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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.