Home / 78,027.41-107,677.05-42,216.63

Finding the Fourth Proportional to 78,027.41, 107,677.05 and 42,216.63

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Solution

The fourth proportional to 78,027.41, 107,677.05 and 42,216.63 is: 58,258.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,027.41 : 107,677.05 = 42,216.63 : x
  2. Step 2: Convert to fraction form
    78,027.41/107,677.05 = 42,216.63/x
  3. Step 3: Cross multiply
    78,027.41x = 107,677.05 × 42,216.63
  4. Step 4: Simplify right side
    78,027.41x = 4,545,762,179.34
  5. Step 5: Solve for x
    x = 4,545,762,179.34/78,027.41
  6. Step 6: Final answer
    x = 58,258.53

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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.