Home / 64,809.36-97,204.82-20,430.34

Finding the Fourth Proportional to 64,809.36, 97,204.82 and 20,430.34

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Solution

The fourth proportional to 64,809.36, 97,204.82 and 20,430.34 is: 30,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,809.36 : 97,204.82 = 20,430.34 : x
  2. Step 2: Convert to fraction form
    64,809.36/97,204.82 = 20,430.34/x
  3. Step 3: Cross multiply
    64,809.36x = 97,204.82 × 20,430.34
  4. Step 4: Simplify right side
    64,809.36x = 1,985,927,522.24
  5. Step 5: Solve for x
    x = 1,985,927,522.24/64,809.36
  6. Step 6: Final answer
    x = 30,642.60

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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.