Home / 64,715.32-97,055.17-40,987.28

Finding the Fourth Proportional to 64,715.32, 97,055.17 and 40,987.28

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Solution

The fourth proportional to 64,715.32, 97,055.17 and 40,987.28 is: 61,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,715.32 : 97,055.17 = 40,987.28 : x
  2. Step 2: Convert to fraction form
    64,715.32/97,055.17 = 40,987.28/x
  3. Step 3: Cross multiply
    64,715.32x = 97,055.17 × 40,987.28
  4. Step 4: Simplify right side
    64,715.32x = 3,978,027,428.24
  5. Step 5: Solve for x
    x = 3,978,027,428.24/64,715.32
  6. Step 6: Final answer
    x = 61,469.64

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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.