Home / 76,576.32-105,681.12-43,047.36

Finding the Fourth Proportional to 76,576.32, 105,681.12 and 43,047.36

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Solution

The fourth proportional to 76,576.32, 105,681.12 and 43,047.36 is: 59,408.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,576.32 : 105,681.12 = 43,047.36 : x
  2. Step 2: Convert to fraction form
    76,576.32/105,681.12 = 43,047.36/x
  3. Step 3: Cross multiply
    76,576.32x = 105,681.12 × 43,047.36
  4. Step 4: Simplify right side
    76,576.32x = 4,549,293,217.84
  5. Step 5: Solve for x
    x = 4,549,293,217.84/76,576.32
  6. Step 6: Final answer
    x = 59,408.62

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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.