Home / 87,703.32-121,050.54-51,914.28

Finding the Fourth Proportional to 87,703.32, 121,050.54 and 51,914.28

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Solution

The fourth proportional to 87,703.32, 121,050.54 and 51,914.28 is: 71,653.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,703.32 : 121,050.54 = 51,914.28 : x
  2. Step 2: Convert to fraction form
    87,703.32/121,050.54 = 51,914.28/x
  3. Step 3: Cross multiply
    87,703.32x = 121,050.54 × 51,914.28
  4. Step 4: Simplify right side
    87,703.32x = 6,284,251,627.71
  5. Step 5: Solve for x
    x = 6,284,251,627.71/87,703.32
  6. Step 6: Final answer
    x = 71,653.52

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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.