Home / 76,675.51-105,818.60-42,690.44

Finding the Fourth Proportional to 76,675.51, 105,818.60 and 42,690.44

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Solution

The fourth proportional to 76,675.51, 105,818.60 and 42,690.44 is: 58,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,675.51 : 105,818.60 = 42,690.44 : x
  2. Step 2: Convert to fraction form
    76,675.51/105,818.60 = 42,690.44/x
  3. Step 3: Cross multiply
    76,675.51x = 105,818.60 × 42,690.44
  4. Step 4: Simplify right side
    76,675.51x = 4,517,442,965.46
  5. Step 5: Solve for x
    x = 4,517,442,965.46/76,675.51
  6. Step 6: Final answer
    x = 58,916.37

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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.