Home / 65,430.72-98,144.01-18,683.55

Finding the Fourth Proportional to 65,430.72, 98,144.01 and 18,683.55

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Solution

The fourth proportional to 65,430.72, 98,144.01 and 18,683.55 is: 28,024.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,430.72 : 98,144.01 = 18,683.55 : x
  2. Step 2: Convert to fraction form
    65,430.72/98,144.01 = 18,683.55/x
  3. Step 3: Cross multiply
    65,430.72x = 98,144.01 × 18,683.55
  4. Step 4: Simplify right side
    65,430.72x = 1,833,678,518.04
  5. Step 5: Solve for x
    x = 1,833,678,518.04/65,430.72
  6. Step 6: Final answer
    x = 28,024.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.