Home / 91,461.48-126,221.74-51,172.84

Finding the Fourth Proportional to 91,461.48, 126,221.74 and 51,172.84

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Solution

The fourth proportional to 91,461.48, 126,221.74 and 51,172.84 is: 70,621.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,461.48 : 126,221.74 = 51,172.84 : x
  2. Step 2: Convert to fraction form
    91,461.48/126,221.74 = 51,172.84/x
  3. Step 3: Cross multiply
    91,461.48x = 126,221.74 × 51,172.84
  4. Step 4: Simplify right side
    91,461.48x = 6,459,124,905.54
  5. Step 5: Solve for x
    x = 6,459,124,905.54/91,461.48
  6. Step 6: Final answer
    x = 70,621.26

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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.