Home / 51,554.61-77,683.12-42,399.65

Finding the Fourth Proportional to 51,554.61, 77,683.12 and 42,399.65

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Solution

The fourth proportional to 51,554.61, 77,683.12 and 42,399.65 is: 63,888.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,554.61 : 77,683.12 = 42,399.65 : x
  2. Step 2: Convert to fraction form
    51,554.61/77,683.12 = 42,399.65/x
  3. Step 3: Cross multiply
    51,554.61x = 77,683.12 × 42,399.65
  4. Step 4: Simplify right side
    51,554.61x = 3,293,737,187.12
  5. Step 5: Solve for x
    x = 3,293,737,187.12/51,554.61
  6. Step 6: Final answer
    x = 63,888.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.