Home / 91,237.53-136,860.10-31,307.21

Finding the Fourth Proportional to 91,237.53, 136,860.10 and 31,307.21

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Solution

The fourth proportional to 91,237.53, 136,860.10 and 31,307.21 is: 46,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,237.53 : 136,860.10 = 31,307.21 : x
  2. Step 2: Convert to fraction form
    91,237.53/136,860.10 = 31,307.21/x
  3. Step 3: Cross multiply
    91,237.53x = 136,860.10 × 31,307.21
  4. Step 4: Simplify right side
    91,237.53x = 4,284,707,891.32
  5. Step 5: Solve for x
    x = 4,284,707,891.32/91,237.53
  6. Step 6: Final answer
    x = 46,962.12

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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.