Home / 88,628.10-133,039.35-55,385.70

Finding the Fourth Proportional to 88,628.10, 133,039.35 and 55,385.70

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Solution

The fourth proportional to 88,628.10, 133,039.35 and 55,385.70 is: 83,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,628.10 : 133,039.35 = 55,385.70 : x
  2. Step 2: Convert to fraction form
    88,628.10/133,039.35 = 55,385.70/x
  3. Step 3: Cross multiply
    88,628.10x = 133,039.35 × 55,385.70
  4. Step 4: Simplify right side
    88,628.10x = 7,368,477,527.30
  5. Step 5: Solve for x
    x = 7,368,477,527.30/88,628.10
  6. Step 6: Final answer
    x = 83,139.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.