Home / 77,576.10-107,064.90-45,747.96

Finding the Fourth Proportional to 77,576.10, 107,064.90 and 45,747.96

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Solution

The fourth proportional to 77,576.10, 107,064.90 and 45,747.96 is: 63,138.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,576.10 : 107,064.90 = 45,747.96 : x
  2. Step 2: Convert to fraction form
    77,576.10/107,064.90 = 45,747.96/x
  3. Step 3: Cross multiply
    77,576.10x = 107,064.90 × 45,747.96
  4. Step 4: Simplify right side
    77,576.10x = 4,898,000,762.60
  5. Step 5: Solve for x
    x = 4,898,000,762.60/77,576.10
  6. Step 6: Final answer
    x = 63,138.01

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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.