Home / 56,413.47-77,851.44-30,919.63

Finding the Fourth Proportional to 56,413.47, 77,851.44 and 30,919.63

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Solution

The fourth proportional to 56,413.47, 77,851.44 and 30,919.63 is: 42,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,413.47 : 77,851.44 = 30,919.63 : x
  2. Step 2: Convert to fraction form
    56,413.47/77,851.44 = 30,919.63/x
  3. Step 3: Cross multiply
    56,413.47x = 77,851.44 × 30,919.63
  4. Step 4: Simplify right side
    56,413.47x = 2,407,137,948.04
  5. Step 5: Solve for x
    x = 2,407,137,948.04/56,413.47
  6. Step 6: Final answer
    x = 42,669.56

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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.