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Finding the Fourth Proportional to 72,015.48, 107,303.03 and 64,158.68

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Solution

The fourth proportional to 72,015.48, 107,303.03 and 64,158.68 is: 95,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,015.48 : 107,303.03 = 64,158.68 : x
  2. Step 2: Convert to fraction form
    72,015.48/107,303.03 = 64,158.68/x
  3. Step 3: Cross multiply
    72,015.48x = 107,303.03 × 64,158.68
  4. Step 4: Simplify right side
    72,015.48x = 6,884,420,952.86
  5. Step 5: Solve for x
    x = 6,884,420,952.86/72,015.48
  6. Step 6: Final answer
    x = 95,596.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.