Home / 91,395.30-126,124.65-51,108.60

Finding the Fourth Proportional to 91,395.30, 126,124.65 and 51,108.60

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Solution

The fourth proportional to 91,395.30, 126,124.65 and 51,108.60 is: 70,529.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,395.30 : 126,124.65 = 51,108.60 : x
  2. Step 2: Convert to fraction form
    91,395.30/126,124.65 = 51,108.60/x
  3. Step 3: Cross multiply
    91,395.30x = 126,124.65 × 51,108.60
  4. Step 4: Simplify right side
    91,395.30x = 6,446,054,286.99
  5. Step 5: Solve for x
    x = 6,446,054,286.99/91,395.30
  6. Step 6: Final answer
    x = 70,529.38

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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.