Home / 76,283.77-105,277.83-42,302.91

Finding the Fourth Proportional to 76,283.77, 105,277.83 and 42,302.91

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Solution

The fourth proportional to 76,283.77, 105,277.83 and 42,302.91 is: 58,381.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,283.77 : 105,277.83 = 42,302.91 : x
  2. Step 2: Convert to fraction form
    76,283.77/105,277.83 = 42,302.91/x
  3. Step 3: Cross multiply
    76,283.77x = 105,277.83 × 42,302.91
  4. Step 4: Simplify right side
    76,283.77x = 4,453,558,567.49
  5. Step 5: Solve for x
    x = 4,453,558,567.49/76,283.77
  6. Step 6: Final answer
    x = 58,381.47

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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.