Home / 64,921.34-89,592.60-38,083.20

Finding the Fourth Proportional to 64,921.34, 89,592.60 and 38,083.20

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Solution

The fourth proportional to 64,921.34, 89,592.60 and 38,083.20 is: 52,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,921.34 : 89,592.60 = 38,083.20 : x
  2. Step 2: Convert to fraction form
    64,921.34/89,592.60 = 38,083.20/x
  3. Step 3: Cross multiply
    64,921.34x = 89,592.60 × 38,083.20
  4. Step 4: Simplify right side
    64,921.34x = 3,411,972,904.32
  5. Step 5: Solve for x
    x = 3,411,972,904.32/64,921.34
  6. Step 6: Final answer
    x = 52,555.49

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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.