Home / 101,748.58-140,413.04-56,433.48

Finding the Fourth Proportional to 101,748.58, 140,413.04 and 56,433.48

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Solution

The fourth proportional to 101,748.58, 140,413.04 and 56,433.48 is: 77,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,748.58 : 140,413.04 = 56,433.48 : x
  2. Step 2: Convert to fraction form
    101,748.58/140,413.04 = 56,433.48/x
  3. Step 3: Cross multiply
    101,748.58x = 140,413.04 × 56,433.48
  4. Step 4: Simplify right side
    101,748.58x = 7,923,996,484.58
  5. Step 5: Solve for x
    x = 7,923,996,484.58/101,748.58
  6. Step 6: Final answer
    x = 77,878.20

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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.