Home / 64,553.76-89,109.32-40,675.77

Finding the Fourth Proportional to 64,553.76, 89,109.32 and 40,675.77

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Solution

The fourth proportional to 64,553.76, 89,109.32 and 40,675.77 is: 56,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,553.76 : 89,109.32 = 40,675.77 : x
  2. Step 2: Convert to fraction form
    64,553.76/89,109.32 = 40,675.77/x
  3. Step 3: Cross multiply
    64,553.76x = 89,109.32 × 40,675.77
  4. Step 4: Simplify right side
    64,553.76x = 3,624,590,001.80
  5. Step 5: Solve for x
    x = 3,624,590,001.80/64,553.76
  6. Step 6: Final answer
    x = 56,148.39

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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.