Home / 76,282.49-105,276.07-42,301.63

Finding the Fourth Proportional to 76,282.49, 105,276.07 and 42,301.63

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Solution

The fourth proportional to 76,282.49, 105,276.07 and 42,301.63 is: 58,379.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,282.49 : 105,276.07 = 42,301.63 : x
  2. Step 2: Convert to fraction form
    76,282.49/105,276.07 = 42,301.63/x
  3. Step 3: Cross multiply
    76,282.49x = 105,276.07 × 42,301.63
  4. Step 4: Simplify right side
    76,282.49x = 4,453,349,386.84
  5. Step 5: Solve for x
    x = 4,453,349,386.84/76,282.49
  6. Step 6: Final answer
    x = 58,379.71

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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.