Home / 91,316.50-126,016.41-51,030.25

Finding the Fourth Proportional to 91,316.50, 126,016.41 and 51,030.25

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Solution

The fourth proportional to 91,316.50, 126,016.41 and 51,030.25 is: 70,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,316.50 : 126,016.41 = 51,030.25 : x
  2. Step 2: Convert to fraction form
    91,316.50/126,016.41 = 51,030.25/x
  3. Step 3: Cross multiply
    91,316.50x = 126,016.41 × 51,030.25
  4. Step 4: Simplify right side
    91,316.50x = 6,430,648,906.40
  5. Step 5: Solve for x
    x = 6,430,648,906.40/91,316.50
  6. Step 6: Final answer
    x = 70,421.54

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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.