Home / 64,973.20-97,459.80-53,163.40

Finding the Fourth Proportional to 64,973.20, 97,459.80 and 53,163.40

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Solution

The fourth proportional to 64,973.20, 97,459.80 and 53,163.40 is: 79,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,973.20 : 97,459.80 = 53,163.40 : x
  2. Step 2: Convert to fraction form
    64,973.20/97,459.80 = 53,163.40/x
  3. Step 3: Cross multiply
    64,973.20x = 97,459.80 × 53,163.40
  4. Step 4: Simplify right side
    64,973.20x = 5,181,294,331.32
  5. Step 5: Solve for x
    x = 5,181,294,331.32/64,973.20
  6. Step 6: Final answer
    x = 79,745.10

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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.