Home / 66,803.09-92,189.75-38,122.18

Finding the Fourth Proportional to 66,803.09, 92,189.75 and 38,122.18

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Solution

The fourth proportional to 66,803.09, 92,189.75 and 38,122.18 is: 52,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,803.09 : 92,189.75 = 38,122.18 : x
  2. Step 2: Convert to fraction form
    66,803.09/92,189.75 = 38,122.18/x
  3. Step 3: Cross multiply
    66,803.09x = 92,189.75 × 38,122.18
  4. Step 4: Simplify right side
    66,803.09x = 3,514,473,782.71
  5. Step 5: Solve for x
    x = 3,514,473,782.71/66,803.09
  6. Step 6: Final answer
    x = 52,609.45

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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.