Home / 88,012.12-121,455.14-49,771.08

Finding the Fourth Proportional to 88,012.12, 121,455.14 and 49,771.08

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Solution

The fourth proportional to 88,012.12, 121,455.14 and 49,771.08 is: 68,683.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,012.12 : 121,455.14 = 49,771.08 : x
  2. Step 2: Convert to fraction form
    88,012.12/121,455.14 = 49,771.08/x
  3. Step 3: Cross multiply
    88,012.12x = 121,455.14 × 49,771.08
  4. Step 4: Simplify right side
    88,012.12x = 6,044,953,489.35
  5. Step 5: Solve for x
    x = 6,044,953,489.35/88,012.12
  6. Step 6: Final answer
    x = 68,683.19

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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.