Home / 56,159.64-77,499.80-30,665.88

Finding the Fourth Proportional to 56,159.64, 77,499.80 and 30,665.88

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Solution

The fourth proportional to 56,159.64, 77,499.80 and 30,665.88 is: 42,318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,159.64 : 77,499.80 = 30,665.88 : x
  2. Step 2: Convert to fraction form
    56,159.64/77,499.80 = 30,665.88/x
  3. Step 3: Cross multiply
    56,159.64x = 77,499.80 × 30,665.88
  4. Step 4: Simplify right side
    56,159.64x = 2,376,599,413.49
  5. Step 5: Solve for x
    x = 2,376,599,413.49/56,159.64
  6. Step 6: Final answer
    x = 42,318.64

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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.