Home / 42,717.88-63,950.64-31,550.40

Finding the Fourth Proportional to 42,717.88, 63,950.64 and 31,550.40

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Solution

The fourth proportional to 42,717.88, 63,950.64 and 31,550.40 is: 47,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,717.88 : 63,950.64 = 31,550.40 : x
  2. Step 2: Convert to fraction form
    42,717.88/63,950.64 = 31,550.40/x
  3. Step 3: Cross multiply
    42,717.88x = 63,950.64 × 31,550.40
  4. Step 4: Simplify right side
    42,717.88x = 2,017,668,272.26
  5. Step 5: Solve for x
    x = 2,017,668,272.26/42,717.88
  6. Step 6: Final answer
    x = 47,232.41

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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.