Home / 71,430.71-98,574.52-39,599.61

Finding the Fourth Proportional to 71,430.71, 98,574.52 and 39,599.61

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Solution

The fourth proportional to 71,430.71, 98,574.52 and 39,599.61 is: 54,647.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,430.71 : 98,574.52 = 39,599.61 : x
  2. Step 2: Convert to fraction form
    71,430.71/98,574.52 = 39,599.61/x
  3. Step 3: Cross multiply
    71,430.71x = 98,574.52 × 39,599.61
  4. Step 4: Simplify right side
    71,430.71x = 3,903,512,547.94
  5. Step 5: Solve for x
    x = 3,903,512,547.94/71,430.71
  6. Step 6: Final answer
    x = 54,647.54

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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.