Home / 92,930.13-128,235.62-51,538.46

Finding the Fourth Proportional to 92,930.13, 128,235.62 and 51,538.46

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Solution

The fourth proportional to 92,930.13, 128,235.62 and 51,538.46 is: 71,118.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,930.13 : 128,235.62 = 51,538.46 : x
  2. Step 2: Convert to fraction form
    92,930.13/128,235.62 = 51,538.46/x
  3. Step 3: Cross multiply
    92,930.13x = 128,235.62 × 51,538.46
  4. Step 4: Simplify right side
    92,930.13x = 6,609,066,371.95
  5. Step 5: Solve for x
    x = 6,609,066,371.95/92,930.13
  6. Step 6: Final answer
    x = 71,118.66

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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.