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Finding the Fourth Proportional to 72,329.40, 101,399.40 and 72,329.40

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Solution

The fourth proportional to 72,329.40, 101,399.40 and 72,329.40 is: 101,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,329.40 : 101,399.40 = 72,329.40 : x
  2. Step 2: Convert to fraction form
    72,329.40/101,399.40 = 72,329.40/x
  3. Step 3: Cross multiply
    72,329.40x = 101,399.40 × 72,329.40
  4. Step 4: Simplify right side
    72,329.40x = 7,334,157,762.36
  5. Step 5: Solve for x
    x = 7,334,157,762.36/72,329.40
  6. Step 6: Final answer
    x = 101,399.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.