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Finding the Fourth Proportional to 64,020.70, 96,019.98 and 28,952.20

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Solution

The fourth proportional to 64,020.70, 96,019.98 and 28,952.20 is: 43,423.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,020.70 : 96,019.98 = 28,952.20 : x
  2. Step 2: Convert to fraction form
    64,020.70/96,019.98 = 28,952.20/x
  3. Step 3: Cross multiply
    64,020.70x = 96,019.98 × 28,952.20
  4. Step 4: Simplify right side
    64,020.70x = 2,779,989,664.96
  5. Step 5: Solve for x
    x = 2,779,989,664.96/64,020.70
  6. Step 6: Final answer
    x = 43,423.29

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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.