Home / 88,939.60-122,688.84-54,955.60

Finding the Fourth Proportional to 88,939.60, 122,688.84 and 54,955.60

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Solution

The fourth proportional to 88,939.60, 122,688.84 and 54,955.60 is: 75,809.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,939.60 : 122,688.84 = 54,955.60 : x
  2. Step 2: Convert to fraction form
    88,939.60/122,688.84 = 54,955.60/x
  3. Step 3: Cross multiply
    88,939.60x = 122,688.84 × 54,955.60
  4. Step 4: Simplify right side
    88,939.60x = 6,742,438,815.50
  5. Step 5: Solve for x
    x = 6,742,438,815.50/88,939.60
  6. Step 6: Final answer
    x = 75,809.19

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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.