Home / 71,346.81-98,460.80-39,518.67

Finding the Fourth Proportional to 71,346.81, 98,460.80 and 39,518.67

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Solution

The fourth proportional to 71,346.81, 98,460.80 and 39,518.67 is: 54,536.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,346.81 : 98,460.80 = 39,518.67 : x
  2. Step 2: Convert to fraction form
    71,346.81/98,460.80 = 39,518.67/x
  3. Step 3: Cross multiply
    71,346.81x = 98,460.80 × 39,518.67
  4. Step 4: Simplify right side
    71,346.81x = 3,891,039,863.14
  5. Step 5: Solve for x
    x = 3,891,039,863.14/71,346.81
  6. Step 6: Final answer
    x = 54,536.98

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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.