Home / 71,345.28-98,457.21-43,045.50

Finding the Fourth Proportional to 71,345.28, 98,457.21 and 43,045.50

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Solution

The fourth proportional to 71,345.28, 98,457.21 and 43,045.50 is: 59,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,345.28 : 98,457.21 = 43,045.50 : x
  2. Step 2: Convert to fraction form
    71,345.28/98,457.21 = 43,045.50/x
  3. Step 3: Cross multiply
    71,345.28x = 98,457.21 × 43,045.50
  4. Step 4: Simplify right side
    71,345.28x = 4,238,139,833.06
  5. Step 5: Solve for x
    x = 4,238,139,833.06/71,345.28
  6. Step 6: Final answer
    x = 59,403.23

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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.