Home / 71,431.51-98,575.32-40,803.94

Finding the Fourth Proportional to 71,431.51, 98,575.32 and 40,803.94

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Solution

The fourth proportional to 71,431.51, 98,575.32 and 40,803.94 is: 56,309.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,431.51 : 98,575.32 = 40,803.94 : x
  2. Step 2: Convert to fraction form
    71,431.51/98,575.32 = 40,803.94/x
  3. Step 3: Cross multiply
    71,431.51x = 98,575.32 × 40,803.94
  4. Step 4: Simplify right side
    71,431.51x = 4,022,261,442.76
  5. Step 5: Solve for x
    x = 4,022,261,442.76/71,431.51
  6. Step 6: Final answer
    x = 56,309.34

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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.