Home / 92,921.38-128,232.01-57,134.77

Finding the Fourth Proportional to 92,921.38, 128,232.01 and 57,134.77

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Solution

The fourth proportional to 92,921.38, 128,232.01 and 57,134.77 is: 78,846.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,921.38 : 128,232.01 = 57,134.77 : x
  2. Step 2: Convert to fraction form
    92,921.38/128,232.01 = 57,134.77/x
  3. Step 3: Cross multiply
    92,921.38x = 128,232.01 × 57,134.77
  4. Step 4: Simplify right side
    92,921.38x = 7,326,506,148.83
  5. Step 5: Solve for x
    x = 7,326,506,148.83/92,921.38
  6. Step 6: Final answer
    x = 78,846.29

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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.