Home / 77,316.84-106,459.98-67,701.72

Finding the Fourth Proportional to 77,316.84, 106,459.98 and 67,701.72

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Solution

The fourth proportional to 77,316.84, 106,459.98 and 67,701.72 is: 93,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,316.84 : 106,459.98 = 67,701.72 : x
  2. Step 2: Convert to fraction form
    77,316.84/106,459.98 = 67,701.72/x
  3. Step 3: Cross multiply
    77,316.84x = 106,459.98 × 67,701.72
  4. Step 4: Simplify right side
    77,316.84x = 7,207,523,757.17
  5. Step 5: Solve for x
    x = 7,207,523,757.17/77,316.84
  6. Step 6: Final answer
    x = 93,220.62

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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.