Home / 77,923.72-116,738.70-38,434.60

Finding the Fourth Proportional to 77,923.72, 116,738.70 and 38,434.60

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Solution

The fourth proportional to 77,923.72, 116,738.70 and 38,434.60 is: 57,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,923.72 : 116,738.70 = 38,434.60 : x
  2. Step 2: Convert to fraction form
    77,923.72/116,738.70 = 38,434.60/x
  3. Step 3: Cross multiply
    77,923.72x = 116,738.70 × 38,434.60
  4. Step 4: Simplify right side
    77,923.72x = 4,486,805,239.02
  5. Step 5: Solve for x
    x = 4,486,805,239.02/77,923.72
  6. Step 6: Final answer
    x = 57,579.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.