Home / 71,430.69-98,560.45-42,353.67

Finding the Fourth Proportional to 71,430.69, 98,560.45 and 42,353.67

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Solution

The fourth proportional to 71,430.69, 98,560.45 and 42,353.67 is: 58,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,430.69 : 98,560.45 = 42,353.67 : x
  2. Step 2: Convert to fraction form
    71,430.69/98,560.45 = 42,353.67/x
  3. Step 3: Cross multiply
    71,430.69x = 98,560.45 × 42,353.67
  4. Step 4: Simplify right side
    71,430.69x = 4,174,396,404.25
  5. Step 5: Solve for x
    x = 4,174,396,404.25/71,430.69
  6. Step 6: Final answer
    x = 58,439.82

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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.