Home / 89,019.72-122,853.12-51,296.40

Finding the Fourth Proportional to 89,019.72, 122,853.12 and 51,296.40

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Solution

The fourth proportional to 89,019.72, 122,853.12 and 51,296.40 is: 70,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,019.72 : 122,853.12 = 51,296.40 : x
  2. Step 2: Convert to fraction form
    89,019.72/122,853.12 = 51,296.40/x
  3. Step 3: Cross multiply
    89,019.72x = 122,853.12 × 51,296.40
  4. Step 4: Simplify right side
    89,019.72x = 6,301,922,784.77
  5. Step 5: Solve for x
    x = 6,301,922,784.77/89,019.72
  6. Step 6: Final answer
    x = 70,792.44

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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.