Home / 105,579.29-145,698.02-57,832.68

Finding the Fourth Proportional to 105,579.29, 145,698.02 and 57,832.68

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Solution

The fourth proportional to 105,579.29, 145,698.02 and 57,832.68 is: 79,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,579.29 : 145,698.02 = 57,832.68 : x
  2. Step 2: Convert to fraction form
    105,579.29/145,698.02 = 57,832.68/x
  3. Step 3: Cross multiply
    105,579.29x = 145,698.02 × 57,832.68
  4. Step 4: Simplify right side
    105,579.29x = 8,426,106,967.29
  5. Step 5: Solve for x
    x = 8,426,106,967.29/105,579.29
  6. Step 6: Final answer
    x = 79,808.33

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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.