Home / 71,289.21-98,372.45-42,603.18

Finding the Fourth Proportional to 71,289.21, 98,372.45 and 42,603.18

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Solution

The fourth proportional to 71,289.21, 98,372.45 and 42,603.18 is: 58,788.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,289.21 : 98,372.45 = 42,603.18 : x
  2. Step 2: Convert to fraction form
    71,289.21/98,372.45 = 42,603.18/x
  3. Step 3: Cross multiply
    71,289.21x = 98,372.45 × 42,603.18
  4. Step 4: Simplify right side
    71,289.21x = 4,190,978,981.38
  5. Step 5: Solve for x
    x = 4,190,978,981.38/71,289.21
  6. Step 6: Final answer
    x = 58,788.41

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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.