Home / 57,199.32-78,931.08-31,705.44

Finding the Fourth Proportional to 57,199.32, 78,931.08 and 31,705.44

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Solution

The fourth proportional to 57,199.32, 78,931.08 and 31,705.44 is: 43,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,199.32 : 78,931.08 = 31,705.44 : x
  2. Step 2: Convert to fraction form
    57,199.32/78,931.08 = 31,705.44/x
  3. Step 3: Cross multiply
    57,199.32x = 78,931.08 × 31,705.44
  4. Step 4: Simplify right side
    57,199.32x = 2,502,544,621.08
  5. Step 5: Solve for x
    x = 2,502,544,621.08/57,199.32
  6. Step 6: Final answer
    x = 43,751.30

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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.