Home / 51,888.65-77,857.57-30,870.21

Finding the Fourth Proportional to 51,888.65, 77,857.57 and 30,870.21

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Solution

The fourth proportional to 51,888.65, 77,857.57 and 30,870.21 is: 46,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,888.65 : 77,857.57 = 30,870.21 : x
  2. Step 2: Convert to fraction form
    51,888.65/77,857.57 = 30,870.21/x
  3. Step 3: Cross multiply
    51,888.65x = 77,857.57 × 30,870.21
  4. Step 4: Simplify right side
    51,888.65x = 2,403,479,146.70
  5. Step 5: Solve for x
    x = 2,403,479,146.70/51,888.65
  6. Step 6: Final answer
    x = 46,319.94

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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.