Home / 76,299.03-105,291.56-42,307.58

Finding the Fourth Proportional to 76,299.03, 105,291.56 and 42,307.58

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Solution

The fourth proportional to 76,299.03, 105,291.56 and 42,307.58 is: 58,383.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,299.03 : 105,291.56 = 42,307.58 : x
  2. Step 2: Convert to fraction form
    76,299.03/105,291.56 = 42,307.58/x
  3. Step 3: Cross multiply
    76,299.03x = 105,291.56 × 42,307.58
  4. Step 4: Simplify right side
    76,299.03x = 4,454,630,360.03
  5. Step 5: Solve for x
    x = 4,454,630,360.03/76,299.03
  6. Step 6: Final answer
    x = 58,383.84

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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.