Home / 53,529.40-73,840.80-42,157

Finding the Fourth Proportional to 53,529.40, 73,840.80 and 42,157

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Solution

The fourth proportional to 53,529.40, 73,840.80 and 42,157 is: 58,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,529.40 : 73,840.80 = 42,157 : x
  2. Step 2: Convert to fraction form
    53,529.40/73,840.80 = 42,157/x
  3. Step 3: Cross multiply
    53,529.40x = 73,840.80 × 42,157
  4. Step 4: Simplify right side
    53,529.40x = 3,112,906,605.60
  5. Step 5: Solve for x
    x = 3,112,906,605.60/53,529.40
  6. Step 6: Final answer
    x = 58,153.21

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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.