Home / 89,368.56-123,386.40-55,413.12

Finding the Fourth Proportional to 89,368.56, 123,386.40 and 55,413.12

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Solution

The fourth proportional to 89,368.56, 123,386.40 and 55,413.12 is: 76,505.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,368.56 : 123,386.40 = 55,413.12 : x
  2. Step 2: Convert to fraction form
    89,368.56/123,386.40 = 55,413.12/x
  3. Step 3: Cross multiply
    89,368.56x = 123,386.40 × 55,413.12
  4. Step 4: Simplify right side
    89,368.56x = 6,837,225,389.57
  5. Step 5: Solve for x
    x = 6,837,225,389.57/89,368.56
  6. Step 6: Final answer
    x = 76,505.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.