Home / 90,419.08-124,774.68-49,582.36

Finding the Fourth Proportional to 90,419.08, 124,774.68 and 49,582.36

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Solution

The fourth proportional to 90,419.08, 124,774.68 and 49,582.36 is: 68,421.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,419.08 : 124,774.68 = 49,582.36 : x
  2. Step 2: Convert to fraction form
    90,419.08/124,774.68 = 49,582.36/x
  3. Step 3: Cross multiply
    90,419.08x = 124,774.68 × 49,582.36
  4. Step 4: Simplify right side
    90,419.08x = 6,186,623,102.64
  5. Step 5: Solve for x
    x = 6,186,623,102.64/90,419.08
  6. Step 6: Final answer
    x = 68,421.66

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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.