Home / 105,460.43-145,533.44-57,712.82

Finding the Fourth Proportional to 105,460.43, 145,533.44 and 57,712.82

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Solution

The fourth proportional to 105,460.43, 145,533.44 and 57,712.82 is: 79,642.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,460.43 : 145,533.44 = 57,712.82 : x
  2. Step 2: Convert to fraction form
    105,460.43/145,533.44 = 57,712.82/x
  3. Step 3: Cross multiply
    105,460.43x = 145,533.44 × 57,712.82
  4. Step 4: Simplify right side
    105,460.43x = 8,399,144,643.32
  5. Step 5: Solve for x
    x = 8,399,144,643.32/105,460.43
  6. Step 6: Final answer
    x = 79,642.62

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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.