Home / 90,530.06-124,844.69-54,225.69

Finding the Fourth Proportional to 90,530.06, 124,844.69 and 54,225.69

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Solution

The fourth proportional to 90,530.06, 124,844.69 and 54,225.69 is: 74,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,530.06 : 124,844.69 = 54,225.69 : x
  2. Step 2: Convert to fraction form
    90,530.06/124,844.69 = 54,225.69/x
  3. Step 3: Cross multiply
    90,530.06x = 124,844.69 × 54,225.69
  4. Step 4: Simplify right side
    90,530.06x = 6,769,789,186.96
  5. Step 5: Solve for x
    x = 6,769,789,186.96/90,530.06
  6. Step 6: Final answer
    x = 74,779.47

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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.