Home / 72,473.88-100,015.02-42,258.36

Finding the Fourth Proportional to 72,473.88, 100,015.02 and 42,258.36

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Solution

The fourth proportional to 72,473.88, 100,015.02 and 42,258.36 is: 58,317.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,473.88 : 100,015.02 = 42,258.36 : x
  2. Step 2: Convert to fraction form
    72,473.88/100,015.02 = 42,258.36/x
  3. Step 3: Cross multiply
    72,473.88x = 100,015.02 × 42,258.36
  4. Step 4: Simplify right side
    72,473.88x = 4,226,470,720.57
  5. Step 5: Solve for x
    x = 4,226,470,720.57/72,473.88
  6. Step 6: Final answer
    x = 58,317.16

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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.