Home / 70,518.85-97,318.54-38,688.67

Finding the Fourth Proportional to 70,518.85, 97,318.54 and 38,688.67

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Solution

The fourth proportional to 70,518.85, 97,318.54 and 38,688.67 is: 53,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,518.85 : 97,318.54 = 38,688.67 : x
  2. Step 2: Convert to fraction form
    70,518.85/97,318.54 = 38,688.67/x
  3. Step 3: Cross multiply
    70,518.85x = 97,318.54 × 38,688.67
  4. Step 4: Simplify right side
    70,518.85x = 3,765,124,685.50
  5. Step 5: Solve for x
    x = 3,765,124,685.50/70,518.85
  6. Step 6: Final answer
    x = 53,391.75

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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.