Home / 71,316.43-98,416.29-39,485.23

Finding the Fourth Proportional to 71,316.43, 98,416.29 and 39,485.23

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Solution

The fourth proportional to 71,316.43, 98,416.29 and 39,485.23 is: 54,489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.43 : 98,416.29 = 39,485.23 : x
  2. Step 2: Convert to fraction form
    71,316.43/98,416.29 = 39,485.23/x
  3. Step 3: Cross multiply
    71,316.43x = 98,416.29 × 39,485.23
  4. Step 4: Simplify right side
    71,316.43x = 3,885,989,846.40
  5. Step 5: Solve for x
    x = 3,885,989,846.40/71,316.43
  6. Step 6: Final answer
    x = 54,489.41

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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.