Home / 42,719.37-64,077.12-14,641.92

Finding the Fourth Proportional to 42,719.37, 64,077.12 and 14,641.92

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Solution

The fourth proportional to 42,719.37, 64,077.12 and 14,641.92 is: 21,962.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,719.37 : 64,077.12 = 14,641.92 : x
  2. Step 2: Convert to fraction form
    42,719.37/64,077.12 = 14,641.92/x
  3. Step 3: Cross multiply
    42,719.37x = 64,077.12 × 14,641.92
  4. Step 4: Simplify right side
    42,719.37x = 938,212,064.87
  5. Step 5: Solve for x
    x = 938,212,064.87/42,719.37
  6. Step 6: Final answer
    x = 21,962.22

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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.