Home / 64,937.80-97,359.18-20,539.72

Finding the Fourth Proportional to 64,937.80, 97,359.18 and 20,539.72

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Solution

The fourth proportional to 64,937.80, 97,359.18 and 20,539.72 is: 30,794.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,937.80 : 97,359.18 = 20,539.72 : x
  2. Step 2: Convert to fraction form
    64,937.80/97,359.18 = 20,539.72/x
  3. Step 3: Cross multiply
    64,937.80x = 97,359.18 × 20,539.72
  4. Step 4: Simplify right side
    64,937.80x = 1,999,730,296.63
  5. Step 5: Solve for x
    x = 1,999,730,296.63/64,937.80
  6. Step 6: Final answer
    x = 30,794.55

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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.