Home / 60,985.20-91,330.16-42,212.64

Finding the Fourth Proportional to 60,985.20, 91,330.16 and 42,212.64

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Solution

The fourth proportional to 60,985.20, 91,330.16 and 42,212.64 is: 63,216.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,985.20 : 91,330.16 = 42,212.64 : x
  2. Step 2: Convert to fraction form
    60,985.20/91,330.16 = 42,212.64/x
  3. Step 3: Cross multiply
    60,985.20x = 91,330.16 × 42,212.64
  4. Step 4: Simplify right side
    60,985.20x = 3,855,287,165.22
  5. Step 5: Solve for x
    x = 3,855,287,165.22/60,985.20
  6. Step 6: Final answer
    x = 63,216.77

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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.