Home / 64,756.20-89,370.66-40,881.64

Finding the Fourth Proportional to 64,756.20, 89,370.66 and 40,881.64

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Solution

The fourth proportional to 64,756.20, 89,370.66 and 40,881.64 is: 56,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,756.20 : 89,370.66 = 40,881.64 : x
  2. Step 2: Convert to fraction form
    64,756.20/89,370.66 = 40,881.64/x
  3. Step 3: Cross multiply
    64,756.20x = 89,370.66 × 40,881.64
  4. Step 4: Simplify right side
    64,756.20x = 3,653,619,148.68
  5. Step 5: Solve for x
    x = 3,653,619,148.68/64,756.20
  6. Step 6: Final answer
    x = 56,421.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.