Home / 90,079.48-124,296.36-51,317.64

Finding the Fourth Proportional to 90,079.48, 124,296.36 and 51,317.64

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Solution

The fourth proportional to 90,079.48, 124,296.36 and 51,317.64 is: 70,810.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,079.48 : 124,296.36 = 51,317.64 : x
  2. Step 2: Convert to fraction form
    90,079.48/124,296.36 = 51,317.64/x
  3. Step 3: Cross multiply
    90,079.48x = 124,296.36 × 51,317.64
  4. Step 4: Simplify right side
    90,079.48x = 6,378,595,855.79
  5. Step 5: Solve for x
    x = 6,378,595,855.79/90,079.48
  6. Step 6: Final answer
    x = 70,810.75

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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.