Home / 91,011.36-136,578.55-31,847.55

Finding the Fourth Proportional to 91,011.36, 136,578.55 and 31,847.55

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Solution

The fourth proportional to 91,011.36, 136,578.55 and 31,847.55 is: 47,792.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,011.36 : 136,578.55 = 31,847.55 : x
  2. Step 2: Convert to fraction form
    91,011.36/136,578.55 = 31,847.55/x
  3. Step 3: Cross multiply
    91,011.36x = 136,578.55 × 31,847.55
  4. Step 4: Simplify right side
    91,011.36x = 4,349,692,200.05
  5. Step 5: Solve for x
    x = 4,349,692,200.05/91,011.36
  6. Step 6: Final answer
    x = 47,792.85

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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.