Home / 76,584.32-105,688-43,050.88

Finding the Fourth Proportional to 76,584.32, 105,688 and 43,050.88

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Solution

The fourth proportional to 76,584.32, 105,688 and 43,050.88 is: 59,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,584.32 : 105,688 = 43,050.88 : x
  2. Step 2: Convert to fraction form
    76,584.32/105,688 = 43,050.88/x
  3. Step 3: Cross multiply
    76,584.32x = 105,688 × 43,050.88
  4. Step 4: Simplify right side
    76,584.32x = 4,549,961,405.44
  5. Step 5: Solve for x
    x = 4,549,961,405.44/76,584.32
  6. Step 6: Final answer
    x = 59,411.14

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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.