Home / 91,136.16-125,768-50,848.80

Finding the Fourth Proportional to 91,136.16, 125,768 and 50,848.80

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Solution

The fourth proportional to 91,136.16, 125,768 and 50,848.80 is: 70,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,136.16 : 125,768 = 50,848.80 : x
  2. Step 2: Convert to fraction form
    91,136.16/125,768 = 50,848.80/x
  3. Step 3: Cross multiply
    91,136.16x = 125,768 × 50,848.80
  4. Step 4: Simplify right side
    91,136.16x = 6,395,151,878.40
  5. Step 5: Solve for x
    x = 6,395,151,878.40/91,136.16
  6. Step 6: Final answer
    x = 70,171.40

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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.