Home / 64,972.85-97,459.16-47,315.79

Finding the Fourth Proportional to 64,972.85, 97,459.16 and 47,315.79

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Solution

The fourth proportional to 64,972.85, 97,459.16 and 47,315.79 is: 70,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,972.85 : 97,459.16 = 47,315.79 : x
  2. Step 2: Convert to fraction form
    64,972.85/97,459.16 = 47,315.79/x
  3. Step 3: Cross multiply
    64,972.85x = 97,459.16 × 47,315.79
  4. Step 4: Simplify right side
    64,972.85x = 4,611,356,911.56
  5. Step 5: Solve for x
    x = 4,611,356,911.56/64,972.85
  6. Step 6: Final answer
    x = 70,973.60

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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.