Home / 56,585.20-84,877.80-53,129.20

Finding the Fourth Proportional to 56,585.20, 84,877.80 and 53,129.20

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Solution

The fourth proportional to 56,585.20, 84,877.80 and 53,129.20 is: 79,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,585.20 : 84,877.80 = 53,129.20 : x
  2. Step 2: Convert to fraction form
    56,585.20/84,877.80 = 53,129.20/x
  3. Step 3: Cross multiply
    56,585.20x = 84,877.80 × 53,129.20
  4. Step 4: Simplify right side
    56,585.20x = 4,509,489,611.76
  5. Step 5: Solve for x
    x = 4,509,489,611.76/56,585.20
  6. Step 6: Final answer
    x = 79,693.80

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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.