Home / 76,332.40-105,339-42,344.02

Finding the Fourth Proportional to 76,332.40, 105,339 and 42,344.02

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Solution

The fourth proportional to 76,332.40, 105,339 and 42,344.02 is: 58,434.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,332.40 : 105,339 = 42,344.02 : x
  2. Step 2: Convert to fraction form
    76,332.40/105,339 = 42,344.02/x
  3. Step 3: Cross multiply
    76,332.40x = 105,339 × 42,344.02
  4. Step 4: Simplify right side
    76,332.40x = 4,460,476,722.78
  5. Step 5: Solve for x
    x = 4,460,476,722.78/76,332.40
  6. Step 6: Final answer
    x = 58,434.91

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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.