Home / 40,824-56,360.16-30,870.72

Finding the Fourth Proportional to 40,824, 56,360.16 and 30,870.72

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Solution

The fourth proportional to 40,824, 56,360.16 and 30,870.72 is: 42,619.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,824 : 56,360.16 = 30,870.72 : x
  2. Step 2: Convert to fraction form
    40,824/56,360.16 = 30,870.72/x
  3. Step 3: Cross multiply
    40,824x = 56,360.16 × 30,870.72
  4. Step 4: Simplify right side
    40,824x = 1,739,878,718.52
  5. Step 5: Solve for x
    x = 1,739,878,718.52/40,824
  6. Step 6: Final answer
    x = 42,619.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.