Home / 90,851.10-136,283.13-31,669.26

Finding the Fourth Proportional to 90,851.10, 136,283.13 and 31,669.26

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Solution

The fourth proportional to 90,851.10, 136,283.13 and 31,669.26 is: 47,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,851.10 : 136,283.13 = 31,669.26 : x
  2. Step 2: Convert to fraction form
    90,851.10/136,283.13 = 31,669.26/x
  3. Step 3: Cross multiply
    90,851.10x = 136,283.13 × 31,669.26
  4. Step 4: Simplify right side
    90,851.10x = 4,315,985,877.58
  5. Step 5: Solve for x
    x = 4,315,985,877.58/90,851.10
  6. Step 6: Final answer
    x = 47,506.15

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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.