Home / 91,671.06-126,511.91-51,384.84

Finding the Fourth Proportional to 91,671.06, 126,511.91 and 51,384.84

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Solution

The fourth proportional to 91,671.06, 126,511.91 and 51,384.84 is: 70,914.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,671.06 : 126,511.91 = 51,384.84 : x
  2. Step 2: Convert to fraction form
    91,671.06/126,511.91 = 51,384.84/x
  3. Step 3: Cross multiply
    91,671.06x = 126,511.91 × 51,384.84
  4. Step 4: Simplify right side
    91,671.06x = 6,500,793,996.52
  5. Step 5: Solve for x
    x = 6,500,793,996.52/91,671.06
  6. Step 6: Final answer
    x = 70,914.35

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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.