Home / 76,242.64-105,214.84-42,708.56

Finding the Fourth Proportional to 76,242.64, 105,214.84 and 42,708.56

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Solution

The fourth proportional to 76,242.64, 105,214.84 and 42,708.56 is: 58,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,242.64 : 105,214.84 = 42,708.56 : x
  2. Step 2: Convert to fraction form
    76,242.64/105,214.84 = 42,708.56/x
  3. Step 3: Cross multiply
    76,242.64x = 105,214.84 × 42,708.56
  4. Step 4: Simplify right side
    76,242.64x = 4,493,574,307.03
  5. Step 5: Solve for x
    x = 4,493,574,307.03/76,242.64
  6. Step 6: Final answer
    x = 58,937.81

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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.