Home / 51,581.55-77,376.29-21,999.63

Finding the Fourth Proportional to 51,581.55, 77,376.29 and 21,999.63

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Solution

The fourth proportional to 51,581.55, 77,376.29 and 21,999.63 is: 33,001.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,581.55 : 77,376.29 = 21,999.63 : x
  2. Step 2: Convert to fraction form
    51,581.55/77,376.29 = 21,999.63/x
  3. Step 3: Cross multiply
    51,581.55x = 77,376.29 × 21,999.63
  4. Step 4: Simplify right side
    51,581.55x = 1,702,249,640.77
  5. Step 5: Solve for x
    x = 1,702,249,640.77/51,581.55
  6. Step 6: Final answer
    x = 33,001.13

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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.