Home / 91,395.64-126,124.95-51,108.85

Finding the Fourth Proportional to 91,395.64, 126,124.95 and 51,108.85

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Solution

The fourth proportional to 91,395.64, 126,124.95 and 51,108.85 is: 70,529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,395.64 : 126,124.95 = 51,108.85 : x
  2. Step 2: Convert to fraction form
    91,395.64/126,124.95 = 51,108.85/x
  3. Step 3: Cross multiply
    91,395.64x = 126,124.95 × 51,108.85
  4. Step 4: Simplify right side
    91,395.64x = 6,446,101,150.81
  5. Step 5: Solve for x
    x = 6,446,101,150.81/91,395.64
  6. Step 6: Final answer
    x = 70,529.64

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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.