Home / 49,411.60-74,117.40-42,413.20

Finding the Fourth Proportional to 49,411.60, 74,117.40 and 42,413.20

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Solution

The fourth proportional to 49,411.60, 74,117.40 and 42,413.20 is: 63,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,411.60 : 74,117.40 = 42,413.20 : x
  2. Step 2: Convert to fraction form
    49,411.60/74,117.40 = 42,413.20/x
  3. Step 3: Cross multiply
    49,411.60x = 74,117.40 × 42,413.20
  4. Step 4: Simplify right side
    49,411.60x = 3,143,556,109.68
  5. Step 5: Solve for x
    x = 3,143,556,109.68/49,411.60
  6. Step 6: Final answer
    x = 63,619.80

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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.