Home / 85,140.24-117,437.26-53,253.80

Finding the Fourth Proportional to 85,140.24, 117,437.26 and 53,253.80

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Solution

The fourth proportional to 85,140.24, 117,437.26 and 53,253.80 is: 73,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,140.24 : 117,437.26 = 53,253.80 : x
  2. Step 2: Convert to fraction form
    85,140.24/117,437.26 = 53,253.80/x
  3. Step 3: Cross multiply
    85,140.24x = 117,437.26 × 53,253.80
  4. Step 4: Simplify right side
    85,140.24x = 6,253,980,356.59
  5. Step 5: Solve for x
    x = 6,253,980,356.59/85,140.24
  6. Step 6: Final answer
    x = 73,455.05

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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.