Home / 72,507.36-100,050.96-42,302.64

Finding the Fourth Proportional to 72,507.36, 100,050.96 and 42,302.64

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Solution

The fourth proportional to 72,507.36, 100,050.96 and 42,302.64 is: 58,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,507.36 : 100,050.96 = 42,302.64 : x
  2. Step 2: Convert to fraction form
    72,507.36/100,050.96 = 42,302.64/x
  3. Step 3: Cross multiply
    72,507.36x = 100,050.96 × 42,302.64
  4. Step 4: Simplify right side
    72,507.36x = 4,232,419,742.53
  5. Step 5: Solve for x
    x = 4,232,419,742.53/72,507.36
  6. Step 6: Final answer
    x = 58,372.28

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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.