Home / 88,272.08-121,814.04-47,986.86

Finding the Fourth Proportional to 88,272.08, 121,814.04 and 47,986.86

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Solution

The fourth proportional to 88,272.08, 121,814.04 and 47,986.86 is: 66,221.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,272.08 : 121,814.04 = 47,986.86 : x
  2. Step 2: Convert to fraction form
    88,272.08/121,814.04 = 47,986.86/x
  3. Step 3: Cross multiply
    88,272.08x = 121,814.04 × 47,986.86
  4. Step 4: Simplify right side
    88,272.08x = 5,845,472,434.51
  5. Step 5: Solve for x
    x = 5,845,472,434.51/88,272.08
  6. Step 6: Final answer
    x = 66,221.08

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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.