Home / 88,222.56-121,772.88-53,779.74

Finding the Fourth Proportional to 88,222.56, 121,772.88 and 53,779.74

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Solution

The fourth proportional to 88,222.56, 121,772.88 and 53,779.74 is: 74,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,222.56 : 121,772.88 = 53,779.74 : x
  2. Step 2: Convert to fraction form
    88,222.56/121,772.88 = 53,779.74/x
  3. Step 3: Cross multiply
    88,222.56x = 121,772.88 × 53,779.74
  4. Step 4: Simplify right side
    88,222.56x = 6,548,913,825.45
  5. Step 5: Solve for x
    x = 6,548,913,825.45/88,222.56
  6. Step 6: Final answer
    x = 74,231.74

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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.