Home / 76,565.32-105,666.60-42,576.28

Finding the Fourth Proportional to 76,565.32, 105,666.60 and 42,576.28

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Solution

The fourth proportional to 76,565.32, 105,666.60 and 42,576.28 is: 58,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,565.32 : 105,666.60 = 42,576.28 : x
  2. Step 2: Convert to fraction form
    76,565.32/105,666.60 = 42,576.28/x
  3. Step 3: Cross multiply
    76,565.32x = 105,666.60 × 42,576.28
  4. Step 4: Simplify right side
    76,565.32x = 4,498,890,748.25
  5. Step 5: Solve for x
    x = 4,498,890,748.25/76,565.32
  6. Step 6: Final answer
    x = 58,758.86

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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.