Home / 84,742.60-127,113.90-51,527.80

Finding the Fourth Proportional to 84,742.60, 127,113.90 and 51,527.80

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Solution

The fourth proportional to 84,742.60, 127,113.90 and 51,527.80 is: 77,291.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,742.60 : 127,113.90 = 51,527.80 : x
  2. Step 2: Convert to fraction form
    84,742.60/127,113.90 = 51,527.80/x
  3. Step 3: Cross multiply
    84,742.60x = 127,113.90 × 51,527.80
  4. Step 4: Simplify right side
    84,742.60x = 6,549,899,616.42
  5. Step 5: Solve for x
    x = 6,549,899,616.42/84,742.60
  6. Step 6: Final answer
    x = 77,291.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.