Home / 85,675.04-118,217.45-53,821.38

Finding the Fourth Proportional to 85,675.04, 118,217.45 and 53,821.38

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Solution

The fourth proportional to 85,675.04, 118,217.45 and 53,821.38 is: 74,264.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,675.04 : 118,217.45 = 53,821.38 : x
  2. Step 2: Convert to fraction form
    85,675.04/118,217.45 = 53,821.38/x
  3. Step 3: Cross multiply
    85,675.04x = 118,217.45 × 53,821.38
  4. Step 4: Simplify right side
    85,675.04x = 6,362,626,299.08
  5. Step 5: Solve for x
    x = 6,362,626,299.08/85,675.04
  6. Step 6: Final answer
    x = 74,264.64

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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.