Home / 66,678.96-92,012.40-37,995.12

Finding the Fourth Proportional to 66,678.96, 92,012.40 and 37,995.12

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Solution

The fourth proportional to 66,678.96, 92,012.40 and 37,995.12 is: 52,430.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,678.96 : 92,012.40 = 37,995.12 : x
  2. Step 2: Convert to fraction form
    66,678.96/92,012.40 = 37,995.12/x
  3. Step 3: Cross multiply
    66,678.96x = 92,012.40 × 37,995.12
  4. Step 4: Simplify right side
    66,678.96x = 3,496,022,179.49
  5. Step 5: Solve for x
    x = 3,496,022,179.49/66,678.96
  6. Step 6: Final answer
    x = 52,430.66

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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.