Home / 77,112.48-106,413.84-43,577.76

Finding the Fourth Proportional to 77,112.48, 106,413.84 and 43,577.76

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Solution

The fourth proportional to 77,112.48, 106,413.84 and 43,577.76 is: 60,136.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,112.48 : 106,413.84 = 43,577.76 : x
  2. Step 2: Convert to fraction form
    77,112.48/106,413.84 = 43,577.76/x
  3. Step 3: Cross multiply
    77,112.48x = 106,413.84 × 43,577.76
  4. Step 4: Simplify right side
    77,112.48x = 4,637,276,780.20
  5. Step 5: Solve for x
    x = 4,637,276,780.20/77,112.48
  6. Step 6: Final answer
    x = 60,136.53

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1.5x scale

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.