Home / 91,769.64-137,432.93-52,206.81

Finding the Fourth Proportional to 91,769.64, 137,432.93 and 52,206.81

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Solution

The fourth proportional to 91,769.64, 137,432.93 and 52,206.81 is: 78,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,769.64 : 137,432.93 = 52,206.81 : x
  2. Step 2: Convert to fraction form
    91,769.64/137,432.93 = 52,206.81/x
  3. Step 3: Cross multiply
    91,769.64x = 137,432.93 × 52,206.81
  4. Step 4: Simplify right side
    91,769.64x = 7,174,934,603.22
  5. Step 5: Solve for x
    x = 7,174,934,603.22/91,769.64
  6. Step 6: Final answer
    x = 78,184.19

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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.