Home / 58,275.87-87,432.27-20,835.15

Finding the Fourth Proportional to 58,275.87, 87,432.27 and 20,835.15

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Solution

The fourth proportional to 58,275.87, 87,432.27 and 20,835.15 is: 31,259.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,275.87 : 87,432.27 = 20,835.15 : x
  2. Step 2: Convert to fraction form
    58,275.87/87,432.27 = 20,835.15/x
  3. Step 3: Cross multiply
    58,275.87x = 87,432.27 × 20,835.15
  4. Step 4: Simplify right side
    58,275.87x = 1,821,664,460.29
  5. Step 5: Solve for x
    x = 1,821,664,460.29/58,275.87
  6. Step 6: Final answer
    x = 31,259.33

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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.