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Finding the Fourth Proportional to 64,957.19, 89,642.03 and 38,100.42

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Solution

The fourth proportional to 64,957.19, 89,642.03 and 38,100.42 is: 52,579.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,957.19 : 89,642.03 = 38,100.42 : x
  2. Step 2: Convert to fraction form
    64,957.19/89,642.03 = 38,100.42/x
  3. Step 3: Cross multiply
    64,957.19x = 89,642.03 × 38,100.42
  4. Step 4: Simplify right side
    64,957.19x = 3,415,398,802.15
  5. Step 5: Solve for x
    x = 3,415,398,802.15/64,957.19
  6. Step 6: Final answer
    x = 52,579.23

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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.