Home / 76,265.18-105,246.70-42,274.40

Finding the Fourth Proportional to 76,265.18, 105,246.70 and 42,274.40

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Solution

The fourth proportional to 76,265.18, 105,246.70 and 42,274.40 is: 58,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,265.18 : 105,246.70 = 42,274.40 : x
  2. Step 2: Convert to fraction form
    76,265.18/105,246.70 = 42,274.40/x
  3. Step 3: Cross multiply
    76,265.18x = 105,246.70 × 42,274.40
  4. Step 4: Simplify right side
    76,265.18x = 4,449,241,094.48
  5. Step 5: Solve for x
    x = 4,449,241,094.48/76,265.18
  6. Step 6: Final answer
    x = 58,339.09

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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.