Home / 90,008.02-124,212.10-49,720.94

Finding the Fourth Proportional to 90,008.02, 124,212.10 and 49,720.94

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Solution

The fourth proportional to 90,008.02, 124,212.10 and 49,720.94 is: 68,615.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,008.02 : 124,212.10 = 49,720.94 : x
  2. Step 2: Convert to fraction form
    90,008.02/124,212.10 = 49,720.94/x
  3. Step 3: Cross multiply
    90,008.02x = 124,212.10 × 49,720.94
  4. Step 4: Simplify right side
    90,008.02x = 6,175,942,371.37
  5. Step 5: Solve for x
    x = 6,175,942,371.37/90,008.02
  6. Step 6: Final answer
    x = 68,615.47

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1.5x scale

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.