Home / 72,564.48-100,138.88-42,351.04

Finding the Fourth Proportional to 72,564.48, 100,138.88 and 42,351.04

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Solution

The fourth proportional to 72,564.48, 100,138.88 and 42,351.04 is: 58,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,564.48 : 100,138.88 = 42,351.04 : x
  2. Step 2: Convert to fraction form
    72,564.48/100,138.88 = 42,351.04/x
  3. Step 3: Cross multiply
    72,564.48x = 100,138.88 × 42,351.04
  4. Step 4: Simplify right side
    72,564.48x = 4,240,985,712.44
  5. Step 5: Solve for x
    x = 4,240,985,712.44/72,564.48
  6. Step 6: Final answer
    x = 58,444.38

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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.