Home / 79,455.13-109,602.28-47,605.58

Finding the Fourth Proportional to 79,455.13, 109,602.28 and 47,605.58

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Solution

The fourth proportional to 79,455.13, 109,602.28 and 47,605.58 is: 65,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,455.13 : 109,602.28 = 47,605.58 : x
  2. Step 2: Convert to fraction form
    79,455.13/109,602.28 = 47,605.58/x
  3. Step 3: Cross multiply
    79,455.13x = 109,602.28 × 47,605.58
  4. Step 4: Simplify right side
    79,455.13x = 5,217,679,870.69
  5. Step 5: Solve for x
    x = 5,217,679,870.69/79,455.13
  6. Step 6: Final answer
    x = 65,668.26

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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.