Home / 76,382.10-105,458.69-58,445.06

Finding the Fourth Proportional to 76,382.10, 105,458.69 and 58,445.06

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Solution

The fourth proportional to 76,382.10, 105,458.69 and 58,445.06 is: 80,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,382.10 : 105,458.69 = 58,445.06 : x
  2. Step 2: Convert to fraction form
    76,382.10/105,458.69 = 58,445.06/x
  3. Step 3: Cross multiply
    76,382.10x = 105,458.69 × 58,445.06
  4. Step 4: Simplify right side
    76,382.10x = 6,163,539,083.39
  5. Step 5: Solve for x
    x = 6,163,539,083.39/76,382.10
  6. Step 6: Final answer
    x = 80,693.50

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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.