Home / 76,410.24-105,447.36-42,875.52

Finding the Fourth Proportional to 76,410.24, 105,447.36 and 42,875.52

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Solution

The fourth proportional to 76,410.24, 105,447.36 and 42,875.52 is: 59,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,410.24 : 105,447.36 = 42,875.52 : x
  2. Step 2: Convert to fraction form
    76,410.24/105,447.36 = 42,875.52/x
  3. Step 3: Cross multiply
    76,410.24x = 105,447.36 × 42,875.52
  4. Step 4: Simplify right side
    76,410.24x = 4,521,110,392.63
  5. Step 5: Solve for x
    x = 4,521,110,392.63/76,410.24
  6. Step 6: Final answer
    x = 59,168.91

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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.