Home / 64,003.60-96,005.40-40,646.80

Finding the Fourth Proportional to 64,003.60, 96,005.40 and 40,646.80

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Solution

The fourth proportional to 64,003.60, 96,005.40 and 40,646.80 is: 60,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,003.60 : 96,005.40 = 40,646.80 : x
  2. Step 2: Convert to fraction form
    64,003.60/96,005.40 = 40,646.80/x
  3. Step 3: Cross multiply
    64,003.60x = 96,005.40 × 40,646.80
  4. Step 4: Simplify right side
    64,003.60x = 3,902,312,292.72
  5. Step 5: Solve for x
    x = 3,902,312,292.72/64,003.60
  6. Step 6: Final answer
    x = 60,970.20

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1.5x scale

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.