Home / 55,030.32-75,944.52-31,158

Finding the Fourth Proportional to 55,030.32, 75,944.52 and 31,158

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Solution

The fourth proportional to 55,030.32, 75,944.52 and 31,158 is: 42,999.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,030.32 : 75,944.52 = 31,158 : x
  2. Step 2: Convert to fraction form
    55,030.32/75,944.52 = 31,158/x
  3. Step 3: Cross multiply
    55,030.32x = 75,944.52 × 31,158
  4. Step 4: Simplify right side
    55,030.32x = 2,366,279,354.16
  5. Step 5: Solve for x
    x = 2,366,279,354.16/55,030.32
  6. Step 6: Final answer
    x = 42,999.56

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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.