Home / 85,596.42-128,289.47-48,077.63

Finding the Fourth Proportional to 85,596.42, 128,289.47 and 48,077.63

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Solution

The fourth proportional to 85,596.42, 128,289.47 and 48,077.63 is: 72,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,596.42 : 128,289.47 = 48,077.63 : x
  2. Step 2: Convert to fraction form
    85,596.42/128,289.47 = 48,077.63/x
  3. Step 3: Cross multiply
    85,596.42x = 128,289.47 × 48,077.63
  4. Step 4: Simplify right side
    85,596.42x = 6,167,853,671.56
  5. Step 5: Solve for x
    x = 6,167,853,671.56/85,596.42
  6. Step 6: Final answer
    x = 72,057.38

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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.