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Finding the Fourth Proportional to 71,316.30, 98,417.67 and 39,050.40

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Solution

The fourth proportional to 71,316.30, 98,417.67 and 39,050.40 is: 53,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.30 : 98,417.67 = 39,050.40 : x
  2. Step 2: Convert to fraction form
    71,316.30/98,417.67 = 39,050.40/x
  3. Step 3: Cross multiply
    71,316.30x = 98,417.67 × 39,050.40
  4. Step 4: Simplify right side
    71,316.30x = 3,843,249,380.57
  5. Step 5: Solve for x
    x = 3,843,249,380.57/71,316.30
  6. Step 6: Final answer
    x = 53,890.20

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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.