Home / 64,973.20-97,344.60-40,320.40

Finding the Fourth Proportional to 64,973.20, 97,344.60 and 40,320.40

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Solution

The fourth proportional to 64,973.20, 97,344.60 and 40,320.40 is: 60,409.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,973.20 : 97,344.60 = 40,320.40 : x
  2. Step 2: Convert to fraction form
    64,973.20/97,344.60 = 40,320.40/x
  3. Step 3: Cross multiply
    64,973.20x = 97,344.60 × 40,320.40
  4. Step 4: Simplify right side
    64,973.20x = 3,924,973,209.84
  5. Step 5: Solve for x
    x = 3,924,973,209.84/64,973.20
  6. Step 6: Final answer
    x = 60,409.11

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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.