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Finding the Fourth Proportional to 64,973.04, 89,668.82 and 39,473.53

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Solution

The fourth proportional to 64,973.04, 89,668.82 and 39,473.53 is: 54,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,973.04 : 89,668.82 = 39,473.53 : x
  2. Step 2: Convert to fraction form
    64,973.04/89,668.82 = 39,473.53/x
  3. Step 3: Cross multiply
    64,973.04x = 89,668.82 × 39,473.53
  4. Step 4: Simplify right side
    64,973.04x = 3,539,544,730.85
  5. Step 5: Solve for x
    x = 3,539,544,730.85/64,973.04
  6. Step 6: Final answer
    x = 54,477.13

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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.