Home / 77,222.21-115,622.64-58,445.45

Finding the Fourth Proportional to 77,222.21, 115,622.64 and 58,445.45

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Solution

The fourth proportional to 77,222.21, 115,622.64 and 58,445.45 is: 87,508.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,222.21 : 115,622.64 = 58,445.45 : x
  2. Step 2: Convert to fraction form
    77,222.21/115,622.64 = 58,445.45/x
  3. Step 3: Cross multiply
    77,222.21x = 115,622.64 × 58,445.45
  4. Step 4: Simplify right side
    77,222.21x = 6,757,617,080.46
  5. Step 5: Solve for x
    x = 6,757,617,080.46/77,222.21
  6. Step 6: Final answer
    x = 87,508.72

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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.