Home / 71,066.60-98,068.38-40,830.50

Finding the Fourth Proportional to 71,066.60, 98,068.38 and 40,830.50

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Solution

The fourth proportional to 71,066.60, 98,068.38 and 40,830.50 is: 56,344.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,066.60 : 98,068.38 = 40,830.50 : x
  2. Step 2: Convert to fraction form
    71,066.60/98,068.38 = 40,830.50/x
  3. Step 3: Cross multiply
    71,066.60x = 98,068.38 × 40,830.50
  4. Step 4: Simplify right side
    71,066.60x = 4,004,180,989.59
  5. Step 5: Solve for x
    x = 4,004,180,989.59/71,066.60
  6. Step 6: Final answer
    x = 56,344.06

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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.