Home / 86,438.13-119,281.50-50,627.40

Finding the Fourth Proportional to 86,438.13, 119,281.50 and 50,627.40

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Solution

The fourth proportional to 86,438.13, 119,281.50 and 50,627.40 is: 69,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,438.13 : 119,281.50 = 50,627.40 : x
  2. Step 2: Convert to fraction form
    86,438.13/119,281.50 = 50,627.40/x
  3. Step 3: Cross multiply
    86,438.13x = 119,281.50 × 50,627.40
  4. Step 4: Simplify right side
    86,438.13x = 6,038,912,213.10
  5. Step 5: Solve for x
    x = 6,038,912,213.10/86,438.13
  6. Step 6: Final answer
    x = 69,863.98

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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.