Home / 90,215.61-124,496.63-49,929.45

Finding the Fourth Proportional to 90,215.61, 124,496.63 and 49,929.45

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Solution

The fourth proportional to 90,215.61, 124,496.63 and 49,929.45 is: 68,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,215.61 : 124,496.63 = 49,929.45 : x
  2. Step 2: Convert to fraction form
    90,215.61/124,496.63 = 49,929.45/x
  3. Step 3: Cross multiply
    90,215.61x = 124,496.63 × 49,929.45
  4. Step 4: Simplify right side
    90,215.61x = 6,216,048,013.11
  5. Step 5: Solve for x
    x = 6,216,048,013.11/90,215.61
  6. Step 6: Final answer
    x = 68,902.13

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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.