Home / 39,108.58-53,917.63-31,068.91

Finding the Fourth Proportional to 39,108.58, 53,917.63 and 31,068.91

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Solution

The fourth proportional to 39,108.58, 53,917.63 and 31,068.91 is: 42,833.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,108.58 : 53,917.63 = 31,068.91 : x
  2. Step 2: Convert to fraction form
    39,108.58/53,917.63 = 31,068.91/x
  3. Step 3: Cross multiply
    39,108.58x = 53,917.63 × 31,068.91
  4. Step 4: Simplify right side
    39,108.58x = 1,675,161,781.42
  5. Step 5: Solve for x
    x = 1,675,161,781.42/39,108.58
  6. Step 6: Final answer
    x = 42,833.62

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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.