Home / 87,950.40-121,305.14-55,254.32

Finding the Fourth Proportional to 87,950.40, 121,305.14 and 55,254.32

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Solution

The fourth proportional to 87,950.40, 121,305.14 and 55,254.32 is: 76,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,950.40 : 121,305.14 = 55,254.32 : x
  2. Step 2: Convert to fraction form
    87,950.40/121,305.14 = 55,254.32/x
  3. Step 3: Cross multiply
    87,950.40x = 121,305.14 × 55,254.32
  4. Step 4: Simplify right side
    87,950.40x = 6,702,633,009.71
  5. Step 5: Solve for x
    x = 6,702,633,009.71/87,950.40
  6. Step 6: Final answer
    x = 76,209.24

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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.