Home / 64,123.21-96,186.45-30,381.32

Finding the Fourth Proportional to 64,123.21, 96,186.45 and 30,381.32

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Solution

The fourth proportional to 64,123.21, 96,186.45 and 30,381.32 is: 45,572.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,123.21 : 96,186.45 = 30,381.32 : x
  2. Step 2: Convert to fraction form
    64,123.21/96,186.45 = 30,381.32/x
  3. Step 3: Cross multiply
    64,123.21x = 96,186.45 × 30,381.32
  4. Step 4: Simplify right side
    64,123.21x = 2,922,271,317.11
  5. Step 5: Solve for x
    x = 2,922,271,317.11/64,123.21
  6. Step 6: Final answer
    x = 45,572.75

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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.