Home / 65,070.12-89,762.04-39,584.28

Finding the Fourth Proportional to 65,070.12, 89,762.04 and 39,584.28

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Solution

The fourth proportional to 65,070.12, 89,762.04 and 39,584.28 is: 54,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,070.12 : 89,762.04 = 39,584.28 : x
  2. Step 2: Convert to fraction form
    65,070.12/89,762.04 = 39,584.28/x
  3. Step 3: Cross multiply
    65,070.12x = 89,762.04 × 39,584.28
  4. Step 4: Simplify right side
    65,070.12x = 3,553,165,724.73
  5. Step 5: Solve for x
    x = 3,553,165,724.73/65,070.12
  6. Step 6: Final answer
    x = 54,605.18

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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.