Home / 105,462.93-145,536.88-57,715.32

Finding the Fourth Proportional to 105,462.93, 145,536.88 and 57,715.32

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Solution

The fourth proportional to 105,462.93, 145,536.88 and 57,715.32 is: 79,646.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,462.93 : 145,536.88 = 57,715.32 : x
  2. Step 2: Convert to fraction form
    105,462.93/145,536.88 = 57,715.32/x
  3. Step 3: Cross multiply
    105,462.93x = 145,536.88 × 57,715.32
  4. Step 4: Simplify right side
    105,462.93x = 8,399,707,601.00
  5. Step 5: Solve for x
    x = 8,399,707,601.00/105,462.93
  6. Step 6: Final answer
    x = 79,646.07

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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.