Home / 64,810.36-97,206.32-20,431.34

Finding the Fourth Proportional to 64,810.36, 97,206.32 and 20,431.34

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Solution

The fourth proportional to 64,810.36, 97,206.32 and 20,431.34 is: 30,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,810.36 : 97,206.32 = 20,431.34 : x
  2. Step 2: Convert to fraction form
    64,810.36/97,206.32 = 20,431.34/x
  3. Step 3: Cross multiply
    64,810.36x = 97,206.32 × 20,431.34
  4. Step 4: Simplify right side
    64,810.36x = 1,986,055,374.07
  5. Step 5: Solve for x
    x = 1,986,055,374.07/64,810.36
  6. Step 6: Final answer
    x = 30,644.10

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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.