Home / 87,261.81-130,907.28-31,134.27

Finding the Fourth Proportional to 87,261.81, 130,907.28 and 31,134.27

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Solution

The fourth proportional to 87,261.81, 130,907.28 and 31,134.27 is: 46,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,261.81 : 130,907.28 = 31,134.27 : x
  2. Step 2: Convert to fraction form
    87,261.81/130,907.28 = 31,134.27/x
  3. Step 3: Cross multiply
    87,261.81x = 130,907.28 × 31,134.27
  4. Step 4: Simplify right side
    87,261.81x = 4,075,702,600.49
  5. Step 5: Solve for x
    x = 4,075,702,600.49/87,261.81
  6. Step 6: Final answer
    x = 46,706.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.