Home / 88,068.53-121,556.19-54,085.12

Finding the Fourth Proportional to 88,068.53, 121,556.19 and 54,085.12

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Solution

The fourth proportional to 88,068.53, 121,556.19 and 54,085.12 is: 74,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,068.53 : 121,556.19 = 54,085.12 : x
  2. Step 2: Convert to fraction form
    88,068.53/121,556.19 = 54,085.12/x
  3. Step 3: Cross multiply
    88,068.53x = 121,556.19 × 54,085.12
  4. Step 4: Simplify right side
    88,068.53x = 6,574,381,021.82
  5. Step 5: Solve for x
    x = 6,574,381,021.82/88,068.53
  6. Step 6: Final answer
    x = 74,650.74

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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.