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Finding the Fourth Proportional to 79,043.51, 118,001.80 and 76,274.93

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Solution

The fourth proportional to 79,043.51, 118,001.80 and 76,274.93 is: 113,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,043.51 : 118,001.80 = 76,274.93 : x
  2. Step 2: Convert to fraction form
    79,043.51/118,001.80 = 76,274.93/x
  3. Step 3: Cross multiply
    79,043.51x = 118,001.80 × 76,274.93
  4. Step 4: Simplify right side
    79,043.51x = 9,000,579,034.87
  5. Step 5: Solve for x
    x = 9,000,579,034.87/79,043.51
  6. Step 6: Final answer
    x = 113,868.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.