Home / 81,043.59-121,482.24-31,110.24

Finding the Fourth Proportional to 81,043.59, 121,482.24 and 31,110.24

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Solution

The fourth proportional to 81,043.59, 121,482.24 and 31,110.24 is: 46,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,043.59 : 121,482.24 = 31,110.24 : x
  2. Step 2: Convert to fraction form
    81,043.59/121,482.24 = 31,110.24/x
  3. Step 3: Cross multiply
    81,043.59x = 121,482.24 × 31,110.24
  4. Step 4: Simplify right side
    81,043.59x = 3,779,341,642.14
  5. Step 5: Solve for x
    x = 3,779,341,642.14/81,043.59
  6. Step 6: Final answer
    x = 46,633.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.