Home / 76,529.81-105,627.85-42,549.91

Finding the Fourth Proportional to 76,529.81, 105,627.85 and 42,549.91

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Solution

The fourth proportional to 76,529.81, 105,627.85 and 42,549.91 is: 58,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,529.81 : 105,627.85 = 42,549.91 : x
  2. Step 2: Convert to fraction form
    76,529.81/105,627.85 = 42,549.91/x
  3. Step 3: Cross multiply
    76,529.81x = 105,627.85 × 42,549.91
  4. Step 4: Simplify right side
    76,529.81x = 4,494,455,140.55
  5. Step 5: Solve for x
    x = 4,494,455,140.55/76,529.81
  6. Step 6: Final answer
    x = 58,728.16

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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.