Home / 61,120.32-91,681.76-19,567.20

Finding the Fourth Proportional to 61,120.32, 91,681.76 and 19,567.20

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Solution

The fourth proportional to 61,120.32, 91,681.76 and 19,567.20 is: 29,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,120.32 : 91,681.76 = 19,567.20 : x
  2. Step 2: Convert to fraction form
    61,120.32/91,681.76 = 19,567.20/x
  3. Step 3: Cross multiply
    61,120.32x = 91,681.76 × 19,567.20
  4. Step 4: Simplify right side
    61,120.32x = 1,793,955,334.27
  5. Step 5: Solve for x
    x = 1,793,955,334.27/61,120.32
  6. Step 6: Final answer
    x = 29,351.21

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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.