Home / 71,723.67-98,981.04-39,459.63

Finding the Fourth Proportional to 71,723.67, 98,981.04 and 39,459.63

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Solution

The fourth proportional to 71,723.67, 98,981.04 and 39,459.63 is: 54,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,723.67 : 98,981.04 = 39,459.63 : x
  2. Step 2: Convert to fraction form
    71,723.67/98,981.04 = 39,459.63/x
  3. Step 3: Cross multiply
    71,723.67x = 98,981.04 × 39,459.63
  4. Step 4: Simplify right side
    71,723.67x = 3,905,755,215.42
  5. Step 5: Solve for x
    x = 3,905,755,215.42/71,723.67
  6. Step 6: Final answer
    x = 54,455.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.