Home / 76,026.72-114,143.51-42,770.19

Finding the Fourth Proportional to 76,026.72, 114,143.51 and 42,770.19

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Solution

The fourth proportional to 76,026.72, 114,143.51 and 42,770.19 is: 64,213.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,026.72 : 114,143.51 = 42,770.19 : x
  2. Step 2: Convert to fraction form
    76,026.72/114,143.51 = 42,770.19/x
  3. Step 3: Cross multiply
    76,026.72x = 114,143.51 × 42,770.19
  4. Step 4: Simplify right side
    76,026.72x = 4,881,939,904.35
  5. Step 5: Solve for x
    x = 4,881,939,904.35/76,026.72
  6. Step 6: Final answer
    x = 64,213.47

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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.