Home / 72,585.24-108,835.47-28,160.08

Finding the Fourth Proportional to 72,585.24, 108,835.47 and 28,160.08

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Solution

The fourth proportional to 72,585.24, 108,835.47 and 28,160.08 is: 42,223.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,585.24 : 108,835.47 = 28,160.08 : x
  2. Step 2: Convert to fraction form
    72,585.24/108,835.47 = 28,160.08/x
  3. Step 3: Cross multiply
    72,585.24x = 108,835.47 × 28,160.08
  4. Step 4: Simplify right side
    72,585.24x = 3,064,815,542.04
  5. Step 5: Solve for x
    x = 3,064,815,542.04/72,585.24
  6. Step 6: Final answer
    x = 42,223.67

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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.