Home / 70,068.12-96,693.93-39,438.78

Finding the Fourth Proportional to 70,068.12, 96,693.93 and 39,438.78

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Solution

The fourth proportional to 70,068.12, 96,693.93 and 39,438.78 is: 54,425.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,068.12 : 96,693.93 = 39,438.78 : x
  2. Step 2: Convert to fraction form
    70,068.12/96,693.93 = 39,438.78/x
  3. Step 3: Cross multiply
    70,068.12x = 96,693.93 × 39,438.78
  4. Step 4: Simplify right side
    70,068.12x = 3,813,490,632.61
  5. Step 5: Solve for x
    x = 3,813,490,632.61/70,068.12
  6. Step 6: Final answer
    x = 54,425.47

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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.