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Finding the Fourth Proportional to 79,567.76, 109,130.76 and 70,599.69

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Solution

The fourth proportional to 79,567.76, 109,130.76 and 70,599.69 is: 96,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,567.76 : 109,130.76 = 70,599.69 : x
  2. Step 2: Convert to fraction form
    79,567.76/109,130.76 = 70,599.69/x
  3. Step 3: Cross multiply
    79,567.76x = 109,130.76 × 70,599.69
  4. Step 4: Simplify right side
    79,567.76x = 7,704,597,825.46
  5. Step 5: Solve for x
    x = 7,704,597,825.46/79,567.76
  6. Step 6: Final answer
    x = 96,830.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.