Home / 94,108.78-129,871.20-51,666.40

Finding the Fourth Proportional to 94,108.78, 129,871.20 and 51,666.40

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Solution

The fourth proportional to 94,108.78, 129,871.20 and 51,666.40 is: 71,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,108.78 : 129,871.20 = 51,666.40 : x
  2. Step 2: Convert to fraction form
    94,108.78/129,871.20 = 51,666.40/x
  3. Step 3: Cross multiply
    94,108.78x = 129,871.20 × 51,666.40
  4. Step 4: Simplify right side
    94,108.78x = 6,709,977,367.68
  5. Step 5: Solve for x
    x = 6,709,977,367.68/94,108.78
  6. Step 6: Final answer
    x = 71,300.23

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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.