Home / 91,672.35-126,513.68-51,386.12

Finding the Fourth Proportional to 91,672.35, 126,513.68 and 51,386.12

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Solution

The fourth proportional to 91,672.35, 126,513.68 and 51,386.12 is: 70,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,672.35 : 126,513.68 = 51,386.12 : x
  2. Step 2: Convert to fraction form
    91,672.35/126,513.68 = 51,386.12/x
  3. Step 3: Cross multiply
    91,672.35x = 126,513.68 × 51,386.12
  4. Step 4: Simplify right side
    91,672.35x = 6,501,047,142.12
  5. Step 5: Solve for x
    x = 6,501,047,142.12/91,672.35
  6. Step 6: Final answer
    x = 70,916.12

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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.