Home / 84,861.31-127,291.95-21,681.56

Finding the Fourth Proportional to 84,861.31, 127,291.95 and 21,681.56

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Solution

The fourth proportional to 84,861.31, 127,291.95 and 21,681.56 is: 32,522.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,861.31 : 127,291.95 = 21,681.56 : x
  2. Step 2: Convert to fraction form
    84,861.31/127,291.95 = 21,681.56/x
  3. Step 3: Cross multiply
    84,861.31x = 127,291.95 × 21,681.56
  4. Step 4: Simplify right side
    84,861.31x = 2,759,887,653.65
  5. Step 5: Solve for x
    x = 2,759,887,653.65/84,861.31
  6. Step 6: Final answer
    x = 32,522.33

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1.5x scale

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.