Home / 64,865.13-89,467.43-42,161.77

Finding the Fourth Proportional to 64,865.13, 89,467.43 and 42,161.77

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Solution

The fourth proportional to 64,865.13, 89,467.43 and 42,161.77 is: 58,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,865.13 : 89,467.43 = 42,161.77 : x
  2. Step 2: Convert to fraction form
    64,865.13/89,467.43 = 42,161.77/x
  3. Step 3: Cross multiply
    64,865.13x = 89,467.43 × 42,161.77
  4. Step 4: Simplify right side
    64,865.13x = 3,772,105,206.15
  5. Step 5: Solve for x
    x = 3,772,105,206.15/64,865.13
  6. Step 6: Final answer
    x = 58,153.05

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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.