Home / 70,946.12-97,906.31-39,116.16

Finding the Fourth Proportional to 70,946.12, 97,906.31 and 39,116.16

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Solution

The fourth proportional to 70,946.12, 97,906.31 and 39,116.16 is: 53,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,946.12 : 97,906.31 = 39,116.16 : x
  2. Step 2: Convert to fraction form
    70,946.12/97,906.31 = 39,116.16/x
  3. Step 3: Cross multiply
    70,946.12x = 97,906.31 × 39,116.16
  4. Step 4: Simplify right side
    70,946.12x = 3,829,718,984.76
  5. Step 5: Solve for x
    x = 3,829,718,984.76/70,946.12
  6. Step 6: Final answer
    x = 53,980.67

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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.