Home / 47,071.04-64,961.28-31,127.84

Finding the Fourth Proportional to 47,071.04, 64,961.28 and 31,127.84

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Solution

The fourth proportional to 47,071.04, 64,961.28 and 31,127.84 is: 42,958.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,071.04 : 64,961.28 = 31,127.84 : x
  2. Step 2: Convert to fraction form
    47,071.04/64,961.28 = 31,127.84/x
  3. Step 3: Cross multiply
    47,071.04x = 64,961.28 × 31,127.84
  4. Step 4: Simplify right side
    47,071.04x = 2,022,104,330.04
  5. Step 5: Solve for x
    x = 2,022,104,330.04/47,071.04
  6. Step 6: Final answer
    x = 42,958.56

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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.