Home / 90,207.06-124,483.87-49,918.40

Finding the Fourth Proportional to 90,207.06, 124,483.87 and 49,918.40

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Solution

The fourth proportional to 90,207.06, 124,483.87 and 49,918.40 is: 68,886.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,207.06 : 124,483.87 = 49,918.40 : x
  2. Step 2: Convert to fraction form
    90,207.06/124,483.87 = 49,918.40/x
  3. Step 3: Cross multiply
    90,207.06x = 124,483.87 × 49,918.40
  4. Step 4: Simplify right side
    90,207.06x = 6,214,035,616.21
  5. Step 5: Solve for x
    x = 6,214,035,616.21/90,207.06
  6. Step 6: Final answer
    x = 68,886.36

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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.