Home / 90,323.12-124,706.76-56,383.28

Finding the Fourth Proportional to 90,323.12, 124,706.76 and 56,383.28

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Solution

The fourth proportional to 90,323.12, 124,706.76 and 56,383.28 is: 77,846.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,323.12 : 124,706.76 = 56,383.28 : x
  2. Step 2: Convert to fraction form
    90,323.12/124,706.76 = 56,383.28/x
  3. Step 3: Cross multiply
    90,323.12x = 124,706.76 × 56,383.28
  4. Step 4: Simplify right side
    90,323.12x = 7,031,376,166.97
  5. Step 5: Solve for x
    x = 7,031,376,166.97/90,323.12
  6. Step 6: Final answer
    x = 77,846.91

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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.