Home / 51,507.12-77,266.80-18,220.32

Finding the Fourth Proportional to 51,507.12, 77,266.80 and 18,220.32

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Solution

The fourth proportional to 51,507.12, 77,266.80 and 18,220.32 is: 27,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,507.12 : 77,266.80 = 18,220.32 : x
  2. Step 2: Convert to fraction form
    51,507.12/77,266.80 = 18,220.32/x
  3. Step 3: Cross multiply
    51,507.12x = 77,266.80 × 18,220.32
  4. Step 4: Simplify right side
    51,507.12x = 1,407,825,821.38
  5. Step 5: Solve for x
    x = 1,407,825,821.38/51,507.12
  6. Step 6: Final answer
    x = 27,332.64

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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.