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Finding the Fourth Proportional to 79,953.30, 110,300.76 and 51,221.58

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Solution

The fourth proportional to 79,953.30, 110,300.76 and 51,221.58 is: 70,663.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,953.30 : 110,300.76 = 51,221.58 : x
  2. Step 2: Convert to fraction form
    79,953.30/110,300.76 = 51,221.58/x
  3. Step 3: Cross multiply
    79,953.30x = 110,300.76 × 51,221.58
  4. Step 4: Simplify right side
    79,953.30x = 5,649,779,202.40
  5. Step 5: Solve for x
    x = 5,649,779,202.40/79,953.30
  6. Step 6: Final answer
    x = 70,663.49

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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.