Home / 72,582.48-108,852.93-28,199.70

Finding the Fourth Proportional to 72,582.48, 108,852.93 and 28,199.70

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Solution

The fourth proportional to 72,582.48, 108,852.93 and 28,199.70 is: 42,291.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,582.48 : 108,852.93 = 28,199.70 : x
  2. Step 2: Convert to fraction form
    72,582.48/108,852.93 = 28,199.70/x
  3. Step 3: Cross multiply
    72,582.48x = 108,852.93 × 28,199.70
  4. Step 4: Simplify right side
    72,582.48x = 3,069,619,970.12
  5. Step 5: Solve for x
    x = 3,069,619,970.12/72,582.48
  6. Step 6: Final answer
    x = 42,291.47

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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.