Home / 90,617.04-125,136.36-58,408.20

Finding the Fourth Proportional to 90,617.04, 125,136.36 and 58,408.20

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Solution

The fourth proportional to 90,617.04, 125,136.36 and 58,408.20 is: 80,658.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,617.04 : 125,136.36 = 58,408.20 : x
  2. Step 2: Convert to fraction form
    90,617.04/125,136.36 = 58,408.20/x
  3. Step 3: Cross multiply
    90,617.04x = 125,136.36 × 58,408.20
  4. Step 4: Simplify right side
    90,617.04x = 7,308,989,542.15
  5. Step 5: Solve for x
    x = 7,308,989,542.15/90,617.04
  6. Step 6: Final answer
    x = 80,658.00

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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.