Home / 91,101.36-136,648.08-31,135.18

Finding the Fourth Proportional to 91,101.36, 136,648.08 and 31,135.18

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Solution

The fourth proportional to 91,101.36, 136,648.08 and 31,135.18 is: 46,701.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,101.36 : 136,648.08 = 31,135.18 : x
  2. Step 2: Convert to fraction form
    91,101.36/136,648.08 = 31,135.18/x
  3. Step 3: Cross multiply
    91,101.36x = 136,648.08 × 31,135.18
  4. Step 4: Simplify right side
    91,101.36x = 4,254,562,567.45
  5. Step 5: Solve for x
    x = 4,254,562,567.45/91,101.36
  6. Step 6: Final answer
    x = 46,701.42

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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.