Home / 88,288.12-121,840.16-53,834.88

Finding the Fourth Proportional to 88,288.12, 121,840.16 and 53,834.88

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Solution

The fourth proportional to 88,288.12, 121,840.16 and 53,834.88 is: 74,293.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,288.12 : 121,840.16 = 53,834.88 : x
  2. Step 2: Convert to fraction form
    88,288.12/121,840.16 = 53,834.88/x
  3. Step 3: Cross multiply
    88,288.12x = 121,840.16 × 53,834.88
  4. Step 4: Simplify right side
    88,288.12x = 6,559,250,392.78
  5. Step 5: Solve for x
    x = 6,559,250,392.78/88,288.12
  6. Step 6: Final answer
    x = 74,293.69

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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.