Home / 90,927.23-136,412.31-28,597.73

Finding the Fourth Proportional to 90,927.23, 136,412.31 and 28,597.73

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Solution

The fourth proportional to 90,927.23, 136,412.31 and 28,597.73 is: 42,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,927.23 : 136,412.31 = 28,597.73 : x
  2. Step 2: Convert to fraction form
    90,927.23/136,412.31 = 28,597.73/x
  3. Step 3: Cross multiply
    90,927.23x = 136,412.31 × 28,597.73
  4. Step 4: Simplify right side
    90,927.23x = 3,901,082,410.06
  5. Step 5: Solve for x
    x = 3,901,082,410.06/90,927.23
  6. Step 6: Final answer
    x = 42,903.35

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1.5x scale

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.