Home / 73,030.72-100,782.32-39,496.64

Finding the Fourth Proportional to 73,030.72, 100,782.32 and 39,496.64

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Solution

The fourth proportional to 73,030.72, 100,782.32 and 39,496.64 is: 54,505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,030.72 : 100,782.32 = 39,496.64 : x
  2. Step 2: Convert to fraction form
    73,030.72/100,782.32 = 39,496.64/x
  3. Step 3: Cross multiply
    73,030.72x = 100,782.32 × 39,496.64
  4. Step 4: Simplify right side
    73,030.72x = 3,980,563,011.40
  5. Step 5: Solve for x
    x = 3,980,563,011.40/73,030.72
  6. Step 6: Final answer
    x = 54,505.32

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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.