Home / 70,515.25-97,312.58-38,684.16

Finding the Fourth Proportional to 70,515.25, 97,312.58 and 38,684.16

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Solution

The fourth proportional to 70,515.25, 97,312.58 and 38,684.16 is: 53,384.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.25 : 97,312.58 = 38,684.16 : x
  2. Step 2: Convert to fraction form
    70,515.25/97,312.58 = 38,684.16/x
  3. Step 3: Cross multiply
    70,515.25x = 97,312.58 × 38,684.16
  4. Step 4: Simplify right side
    70,515.25x = 3,764,455,414.73
  5. Step 5: Solve for x
    x = 3,764,455,414.73/70,515.25
  6. Step 6: Final answer
    x = 53,384.98

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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.