Home / 99,051.68-148,582.56-28,931.60

Finding the Fourth Proportional to 99,051.68, 148,582.56 and 28,931.60

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Solution

The fourth proportional to 99,051.68, 148,582.56 and 28,931.60 is: 43,398.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,051.68 : 148,582.56 = 28,931.60 : x
  2. Step 2: Convert to fraction form
    99,051.68/148,582.56 = 28,931.60/x
  3. Step 3: Cross multiply
    99,051.68x = 148,582.56 × 28,931.60
  4. Step 4: Simplify right side
    99,051.68x = 4,298,731,192.90
  5. Step 5: Solve for x
    x = 4,298,731,192.90/99,051.68
  6. Step 6: Final answer
    x = 43,398.87

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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.