Home / 105,325.72-145,349.44-57,579.04

Finding the Fourth Proportional to 105,325.72, 145,349.44 and 57,579.04

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Solution

The fourth proportional to 105,325.72, 145,349.44 and 57,579.04 is: 79,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,325.72 : 145,349.44 = 57,579.04 : x
  2. Step 2: Convert to fraction form
    105,325.72/145,349.44 = 57,579.04/x
  3. Step 3: Cross multiply
    105,325.72x = 145,349.44 × 57,579.04
  4. Step 4: Simplify right side
    105,325.72x = 8,369,081,219.74
  5. Step 5: Solve for x
    x = 8,369,081,219.74/105,325.72
  6. Step 6: Final answer
    x = 79,459.05

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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.