Home / 90,246.90-124,501.61-54,417.01

Finding the Fourth Proportional to 90,246.90, 124,501.61 and 54,417.01

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Solution

The fourth proportional to 90,246.90, 124,501.61 and 54,417.01 is: 75,071.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,246.90 : 124,501.61 = 54,417.01 : x
  2. Step 2: Convert to fraction form
    90,246.90/124,501.61 = 54,417.01/x
  3. Step 3: Cross multiply
    90,246.90x = 124,501.61 × 54,417.01
  4. Step 4: Simplify right side
    90,246.90x = 6,775,005,181.17
  5. Step 5: Solve for x
    x = 6,775,005,181.17/90,246.90
  6. Step 6: Final answer
    x = 75,071.89

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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.