Home / 51,327.40-77,070.30-27,999.40

Finding the Fourth Proportional to 51,327.40, 77,070.30 and 27,999.40

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Solution

The fourth proportional to 51,327.40, 77,070.30 and 27,999.40 is: 42,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,327.40 : 77,070.30 = 27,999.40 : x
  2. Step 2: Convert to fraction form
    51,327.40/77,070.30 = 27,999.40/x
  3. Step 3: Cross multiply
    51,327.40x = 77,070.30 × 27,999.40
  4. Step 4: Simplify right side
    51,327.40x = 2,157,922,157.82
  5. Step 5: Solve for x
    x = 2,157,922,157.82/51,327.40
  6. Step 6: Final answer
    x = 42,042.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.