Home / 42,719.52-64,077.12-15,015.36

Finding the Fourth Proportional to 42,719.52, 64,077.12 and 15,015.36

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Solution

The fourth proportional to 42,719.52, 64,077.12 and 15,015.36 is: 22,522.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,719.52 : 64,077.12 = 15,015.36 : x
  2. Step 2: Convert to fraction form
    42,719.52/64,077.12 = 15,015.36/x
  3. Step 3: Cross multiply
    42,719.52x = 64,077.12 × 15,015.36
  4. Step 4: Simplify right side
    42,719.52x = 962,141,024.56
  5. Step 5: Solve for x
    x = 962,141,024.56/42,719.52
  6. Step 6: Final answer
    x = 22,522.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.