Home / 94,129.10-129,897.60-51,686.72

Finding the Fourth Proportional to 94,129.10, 129,897.60 and 51,686.72

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Solution

The fourth proportional to 94,129.10, 129,897.60 and 51,686.72 is: 71,327.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,129.10 : 129,897.60 = 51,686.72 : x
  2. Step 2: Convert to fraction form
    94,129.10/129,897.60 = 51,686.72/x
  3. Step 3: Cross multiply
    94,129.10x = 129,897.60 × 51,686.72
  4. Step 4: Simplify right side
    94,129.10x = 6,713,980,879.87
  5. Step 5: Solve for x
    x = 6,713,980,879.87/94,129.10
  6. Step 6: Final answer
    x = 71,327.37

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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.