Home / 76,475.19-105,539-42,483.52

Finding the Fourth Proportional to 76,475.19, 105,539 and 42,483.52

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Solution

The fourth proportional to 76,475.19, 105,539 and 42,483.52 is: 58,629.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,475.19 : 105,539 = 42,483.52 : x
  2. Step 2: Convert to fraction form
    76,475.19/105,539 = 42,483.52/x
  3. Step 3: Cross multiply
    76,475.19x = 105,539 × 42,483.52
  4. Step 4: Simplify right side
    76,475.19x = 4,483,668,217.28
  5. Step 5: Solve for x
    x = 4,483,668,217.28/76,475.19
  6. Step 6: Final answer
    x = 58,629.06

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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.