Home / 64,965.20-97,332.60-40,312.40

Finding the Fourth Proportional to 64,965.20, 97,332.60 and 40,312.40

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Solution

The fourth proportional to 64,965.20, 97,332.60 and 40,312.40 is: 60,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,965.20 : 97,332.60 = 40,312.40 : x
  2. Step 2: Convert to fraction form
    64,965.20/97,332.60 = 40,312.40/x
  3. Step 3: Cross multiply
    64,965.20x = 97,332.60 × 40,312.40
  4. Step 4: Simplify right side
    64,965.20x = 3,923,710,704.24
  5. Step 5: Solve for x
    x = 3,923,710,704.24/64,965.20
  6. Step 6: Final answer
    x = 60,397.12

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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.