Home / 91,769.36-137,358.64-47,335

Finding the Fourth Proportional to 91,769.36, 137,358.64 and 47,335

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Solution

The fourth proportional to 91,769.36, 137,358.64 and 47,335 is: 70,850.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,769.36 : 137,358.64 = 47,335 : x
  2. Step 2: Convert to fraction form
    91,769.36/137,358.64 = 47,335/x
  3. Step 3: Cross multiply
    91,769.36x = 137,358.64 × 47,335
  4. Step 4: Simplify right side
    91,769.36x = 6,501,871,224.40
  5. Step 5: Solve for x
    x = 6,501,871,224.40/91,769.36
  6. Step 6: Final answer
    x = 70,850.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.