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Finding the Fourth Proportional to 91,953.12, 126,899.04 and 51,666.76

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Solution

The fourth proportional to 91,953.12, 126,899.04 and 51,666.76 is: 71,302.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,953.12 : 126,899.04 = 51,666.76 : x
  2. Step 2: Convert to fraction form
    91,953.12/126,899.04 = 51,666.76/x
  3. Step 3: Cross multiply
    91,953.12x = 126,899.04 × 51,666.76
  4. Step 4: Simplify right side
    91,953.12x = 6,556,462,243.91
  5. Step 5: Solve for x
    x = 6,556,462,243.91/91,953.12
  6. Step 6: Final answer
    x = 71,302.23

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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.