Home / 86,543.40-119,431.68-48,817.64

Finding the Fourth Proportional to 86,543.40, 119,431.68 and 48,817.64

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Solution

The fourth proportional to 86,543.40, 119,431.68 and 48,817.64 is: 67,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,543.40 : 119,431.68 = 48,817.64 : x
  2. Step 2: Convert to fraction form
    86,543.40/119,431.68 = 48,817.64/x
  3. Step 3: Cross multiply
    86,543.40x = 119,431.68 × 48,817.64
  4. Step 4: Simplify right side
    86,543.40x = 5,830,372,758.84
  5. Step 5: Solve for x
    x = 5,830,372,758.84/86,543.40
  6. Step 6: Final answer
    x = 67,369.35

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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.