Home / 66,155.72-91,271.94-42,296.36

Finding the Fourth Proportional to 66,155.72, 91,271.94 and 42,296.36

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Solution

The fourth proportional to 66,155.72, 91,271.94 and 42,296.36 is: 58,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,155.72 : 91,271.94 = 42,296.36 : x
  2. Step 2: Convert to fraction form
    66,155.72/91,271.94 = 42,296.36/x
  3. Step 3: Cross multiply
    66,155.72x = 91,271.94 × 42,296.36
  4. Step 4: Simplify right side
    66,155.72x = 3,860,470,832.14
  5. Step 5: Solve for x
    x = 3,860,470,832.14/66,155.72
  6. Step 6: Final answer
    x = 58,354.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.