Home / 89,050.70-133,576.05-77,386.70

Finding the Fourth Proportional to 89,050.70, 133,576.05 and 77,386.70

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Solution

The fourth proportional to 89,050.70, 133,576.05 and 77,386.70 is: 116,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,050.70 : 133,576.05 = 77,386.70 : x
  2. Step 2: Convert to fraction form
    89,050.70/133,576.05 = 77,386.70/x
  3. Step 3: Cross multiply
    89,050.70x = 133,576.05 × 77,386.70
  4. Step 4: Simplify right side
    89,050.70x = 10,337,009,708.54
  5. Step 5: Solve for x
    x = 10,337,009,708.54/89,050.70
  6. Step 6: Final answer
    x = 116,080.05

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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.