Home / 87,386.21-130,797.39-45,208.21

Finding the Fourth Proportional to 87,386.21, 130,797.39 and 45,208.21

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Solution

The fourth proportional to 87,386.21, 130,797.39 and 45,208.21 is: 67,666.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,386.21 : 130,797.39 = 45,208.21 : x
  2. Step 2: Convert to fraction form
    87,386.21/130,797.39 = 45,208.21/x
  3. Step 3: Cross multiply
    87,386.21x = 130,797.39 × 45,208.21
  4. Step 4: Simplify right side
    87,386.21x = 5,913,115,874.57
  5. Step 5: Solve for x
    x = 5,913,115,874.57/87,386.21
  6. Step 6: Final answer
    x = 67,666.46

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1.5x scale

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.