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Finding the Fourth Proportional to 43,155, 64,748.07 and 15,079.20

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Solution

The fourth proportional to 43,155, 64,748.07 and 15,079.20 is: 22,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,155 : 64,748.07 = 15,079.20 : x
  2. Step 2: Convert to fraction form
    43,155/64,748.07 = 15,079.20/x
  3. Step 3: Cross multiply
    43,155x = 64,748.07 × 15,079.20
  4. Step 4: Simplify right side
    43,155x = 976,349,097.14
  5. Step 5: Solve for x
    x = 976,349,097.14/43,155
  6. Step 6: Final answer
    x = 22,624.24

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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.