Home / 76,580.32-105,686.64-43,051.36

Finding the Fourth Proportional to 76,580.32, 105,686.64 and 43,051.36

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Solution

The fourth proportional to 76,580.32, 105,686.64 and 43,051.36 is: 59,414.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,580.32 : 105,686.64 = 43,051.36 : x
  2. Step 2: Convert to fraction form
    76,580.32/105,686.64 = 43,051.36/x
  3. Step 3: Cross multiply
    76,580.32x = 105,686.64 × 43,051.36
  4. Step 4: Simplify right side
    76,580.32x = 4,549,953,585.83
  5. Step 5: Solve for x
    x = 4,549,953,585.83/76,580.32
  6. Step 6: Final answer
    x = 59,414.14

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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.