Home / 88,025.36-121,429.80-57,806.32

Finding the Fourth Proportional to 88,025.36, 121,429.80 and 57,806.32

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Solution

The fourth proportional to 88,025.36, 121,429.80 and 57,806.32 is: 79,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,025.36 : 121,429.80 = 57,806.32 : x
  2. Step 2: Convert to fraction form
    88,025.36/121,429.80 = 57,806.32/x
  3. Step 3: Cross multiply
    88,025.36x = 121,429.80 × 57,806.32
  4. Step 4: Simplify right side
    88,025.36x = 7,019,409,876.34
  5. Step 5: Solve for x
    x = 7,019,409,876.34/88,025.36
  6. Step 6: Final answer
    x = 79,743.04

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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.