Home / 64,929.60-89,611.20-38,073.60

Finding the Fourth Proportional to 64,929.60, 89,611.20 and 38,073.60

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Solution

The fourth proportional to 64,929.60, 89,611.20 and 38,073.60 is: 52,546.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,929.60 : 89,611.20 = 38,073.60 : x
  2. Step 2: Convert to fraction form
    64,929.60/89,611.20 = 38,073.60/x
  3. Step 3: Cross multiply
    64,929.60x = 89,611.20 × 38,073.60
  4. Step 4: Simplify right side
    64,929.60x = 3,411,820,984.32
  5. Step 5: Solve for x
    x = 3,411,820,984.32/64,929.60
  6. Step 6: Final answer
    x = 52,546.47

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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.