Home / 71,663.88-98,896.53-39,835.74

Finding the Fourth Proportional to 71,663.88, 98,896.53 and 39,835.74

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Solution

The fourth proportional to 71,663.88, 98,896.53 and 39,835.74 is: 54,973.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,663.88 : 98,896.53 = 39,835.74 : x
  2. Step 2: Convert to fraction form
    71,663.88/98,896.53 = 39,835.74/x
  3. Step 3: Cross multiply
    71,663.88x = 98,896.53 × 39,835.74
  4. Step 4: Simplify right side
    71,663.88x = 3,939,616,455.98
  5. Step 5: Solve for x
    x = 3,939,616,455.98/71,663.88
  6. Step 6: Final answer
    x = 54,973.53

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1.5x scale

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.