Home / 64,779.04-97,158-18,021.28

Finding the Fourth Proportional to 64,779.04, 97,158 and 18,021.28

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Solution

The fourth proportional to 64,779.04, 97,158 and 18,021.28 is: 27,028.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,779.04 : 97,158 = 18,021.28 : x
  2. Step 2: Convert to fraction form
    64,779.04/97,158 = 18,021.28/x
  3. Step 3: Cross multiply
    64,779.04x = 97,158 × 18,021.28
  4. Step 4: Simplify right side
    64,779.04x = 1,750,911,522.24
  5. Step 5: Solve for x
    x = 1,750,911,522.24/64,779.04
  6. Step 6: Final answer
    x = 27,028.98

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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.