Home / 76,452.05-114,641.43-28,387.67

Finding the Fourth Proportional to 76,452.05, 114,641.43 and 28,387.67

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Solution

The fourth proportional to 76,452.05, 114,641.43 and 28,387.67 is: 42,567.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,452.05 : 114,641.43 = 28,387.67 : x
  2. Step 2: Convert to fraction form
    76,452.05/114,641.43 = 28,387.67/x
  3. Step 3: Cross multiply
    76,452.05x = 114,641.43 × 28,387.67
  4. Step 4: Simplify right side
    76,452.05x = 3,254,402,403.51
  5. Step 5: Solve for x
    x = 3,254,402,403.51/76,452.05
  6. Step 6: Final answer
    x = 42,567.89

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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.