Home / 77,499.36-115,455.06-74,677.32

Finding the Fourth Proportional to 77,499.36, 115,455.06 and 74,677.32

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Solution

The fourth proportional to 77,499.36, 115,455.06 and 74,677.32 is: 111,250.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,499.36 : 115,455.06 = 74,677.32 : x
  2. Step 2: Convert to fraction form
    77,499.36/115,455.06 = 74,677.32/x
  3. Step 3: Cross multiply
    77,499.36x = 115,455.06 × 74,677.32
  4. Step 4: Simplify right side
    77,499.36x = 8,621,874,461.24
  5. Step 5: Solve for x
    x = 8,621,874,461.24/77,499.36
  6. Step 6: Final answer
    x = 111,250.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.