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Finding the Fourth Proportional to 70,354.93, 105,364.88 and 40,710.29

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Solution

The fourth proportional to 70,354.93, 105,364.88 and 40,710.29 is: 60,968.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,354.93 : 105,364.88 = 40,710.29 : x
  2. Step 2: Convert to fraction form
    70,354.93/105,364.88 = 40,710.29/x
  3. Step 3: Cross multiply
    70,354.93x = 105,364.88 × 40,710.29
  4. Step 4: Simplify right side
    70,354.93x = 4,289,434,617.06
  5. Step 5: Solve for x
    x = 4,289,434,617.06/70,354.93
  6. Step 6: Final answer
    x = 60,968.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.