Home / 66,989.12-92,346.30-51,045.92

Finding the Fourth Proportional to 66,989.12, 92,346.30 and 51,045.92

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Solution

The fourth proportional to 66,989.12, 92,346.30 and 51,045.92 is: 70,368.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,989.12 : 92,346.30 = 51,045.92 : x
  2. Step 2: Convert to fraction form
    66,989.12/92,346.30 = 51,045.92/x
  3. Step 3: Cross multiply
    66,989.12x = 92,346.30 × 51,045.92
  4. Step 4: Simplify right side
    66,989.12x = 4,713,901,842.10
  5. Step 5: Solve for x
    x = 4,713,901,842.10/66,989.12
  6. Step 6: Final answer
    x = 70,368.17

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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.