Home / 66,423.18-91,664.10-36,208.74

Finding the Fourth Proportional to 66,423.18, 91,664.10 and 36,208.74

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Solution

The fourth proportional to 66,423.18, 91,664.10 and 36,208.74 is: 49,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,423.18 : 91,664.10 = 36,208.74 : x
  2. Step 2: Convert to fraction form
    66,423.18/91,664.10 = 36,208.74/x
  3. Step 3: Cross multiply
    66,423.18x = 91,664.10 × 36,208.74
  4. Step 4: Simplify right side
    66,423.18x = 3,319,041,564.23
  5. Step 5: Solve for x
    x = 3,319,041,564.23/66,423.18
  6. Step 6: Final answer
    x = 49,968.12

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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.