Home / 70,516.32-97,295.83-39,890.12

Finding the Fourth Proportional to 70,516.32, 97,295.83 and 39,890.12

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Solution

The fourth proportional to 70,516.32, 97,295.83 and 39,890.12 is: 55,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,516.32 : 97,295.83 = 39,890.12 : x
  2. Step 2: Convert to fraction form
    70,516.32/97,295.83 = 39,890.12/x
  3. Step 3: Cross multiply
    70,516.32x = 97,295.83 × 39,890.12
  4. Step 4: Simplify right side
    70,516.32x = 3,881,142,519.67
  5. Step 5: Solve for x
    x = 3,881,142,519.67/70,516.32
  6. Step 6: Final answer
    x = 55,038.92

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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.