Home / 47,874.40-66,075.84-31,713.28

Finding the Fourth Proportional to 47,874.40, 66,075.84 and 31,713.28

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Solution

The fourth proportional to 47,874.40, 66,075.84 and 31,713.28 is: 43,770.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,874.40 : 66,075.84 = 31,713.28 : x
  2. Step 2: Convert to fraction form
    47,874.40/66,075.84 = 31,713.28/x
  3. Step 3: Cross multiply
    47,874.40x = 66,075.84 × 31,713.28
  4. Step 4: Simplify right side
    47,874.40x = 2,095,481,615.16
  5. Step 5: Solve for x
    x = 2,095,481,615.16/47,874.40
  6. Step 6: Final answer
    x = 43,770.40

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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.