Home / 91,529.09-126,314.89-51,240.45

Finding the Fourth Proportional to 91,529.09, 126,314.89 and 51,240.45

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Solution

The fourth proportional to 91,529.09, 126,314.89 and 51,240.45 is: 70,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,529.09 : 126,314.89 = 51,240.45 : x
  2. Step 2: Convert to fraction form
    91,529.09/126,314.89 = 51,240.45/x
  3. Step 3: Cross multiply
    91,529.09x = 126,314.89 × 51,240.45
  4. Step 4: Simplify right side
    91,529.09x = 6,472,431,728.59
  5. Step 5: Solve for x
    x = 6,472,431,728.59/91,529.09
  6. Step 6: Final answer
    x = 70,714.48

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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.