Home / 76,518.38-105,595.26-42,525.80

Finding the Fourth Proportional to 76,518.38, 105,595.26 and 42,525.80

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Solution

The fourth proportional to 76,518.38, 105,595.26 and 42,525.80 is: 58,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,518.38 : 105,595.26 = 42,525.80 : x
  2. Step 2: Convert to fraction form
    76,518.38/105,595.26 = 42,525.80/x
  3. Step 3: Cross multiply
    76,518.38x = 105,595.26 × 42,525.80
  4. Step 4: Simplify right side
    76,518.38x = 4,490,522,907.71
  5. Step 5: Solve for x
    x = 4,490,522,907.71/76,518.38
  6. Step 6: Final answer
    x = 58,685.55

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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.