Home / 64,986.89-97,479.55-20,614.02

Finding the Fourth Proportional to 64,986.89, 97,479.55 and 20,614.02

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Solution

The fourth proportional to 64,986.89, 97,479.55 and 20,614.02 is: 30,920.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,986.89 : 97,479.55 = 20,614.02 : x
  2. Step 2: Convert to fraction form
    64,986.89/97,479.55 = 20,614.02/x
  3. Step 3: Cross multiply
    64,986.89x = 97,479.55 × 20,614.02
  4. Step 4: Simplify right side
    64,986.89x = 2,009,445,341.76
  5. Step 5: Solve for x
    x = 2,009,445,341.76/64,986.89
  6. Step 6: Final answer
    x = 30,920.78

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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.