Home / 74,403.84-111,465.06-57,681.96

Finding the Fourth Proportional to 74,403.84, 111,465.06 and 57,681.96

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Solution

The fourth proportional to 74,403.84, 111,465.06 and 57,681.96 is: 86,413.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,403.84 : 111,465.06 = 57,681.96 : x
  2. Step 2: Convert to fraction form
    74,403.84/111,465.06 = 57,681.96/x
  3. Step 3: Cross multiply
    74,403.84x = 111,465.06 × 57,681.96
  4. Step 4: Simplify right side
    74,403.84x = 6,429,523,132.32
  5. Step 5: Solve for x
    x = 6,429,523,132.32/74,403.84
  6. Step 6: Final answer
    x = 86,413.86

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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.