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Finding the Fourth Proportional to 71,071.85, 98,084.91 and 40,866.99

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Solution

The fourth proportional to 71,071.85, 98,084.91 and 40,866.99 is: 56,399.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,071.85 : 98,084.91 = 40,866.99 : x
  2. Step 2: Convert to fraction form
    71,071.85/98,084.91 = 40,866.99/x
  3. Step 3: Cross multiply
    71,071.85x = 98,084.91 × 40,866.99
  4. Step 4: Simplify right side
    71,071.85x = 4,008,434,341.36
  5. Step 5: Solve for x
    x = 4,008,434,341.36/71,071.85
  6. Step 6: Final answer
    x = 56,399.75

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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.