Home / 47,871.40-66,071.70-31,710.28

Finding the Fourth Proportional to 47,871.40, 66,071.70 and 31,710.28

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Solution

The fourth proportional to 47,871.40, 66,071.70 and 31,710.28 is: 43,766.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,871.40 : 66,071.70 = 31,710.28 : x
  2. Step 2: Convert to fraction form
    47,871.40/66,071.70 = 31,710.28/x
  3. Step 3: Cross multiply
    47,871.40x = 66,071.70 × 31,710.28
  4. Step 4: Simplify right side
    47,871.40x = 2,095,152,107.08
  5. Step 5: Solve for x
    x = 2,095,152,107.08/47,871.40
  6. Step 6: Final answer
    x = 43,766.26

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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.