Home / 90,045.63-124,256.70-49,758.66

Finding the Fourth Proportional to 90,045.63, 124,256.70 and 49,758.66

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Solution

The fourth proportional to 90,045.63, 124,256.70 and 49,758.66 is: 68,663.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,045.63 : 124,256.70 = 49,758.66 : x
  2. Step 2: Convert to fraction form
    90,045.63/124,256.70 = 49,758.66/x
  3. Step 3: Cross multiply
    90,045.63x = 124,256.70 × 49,758.66
  4. Step 4: Simplify right side
    90,045.63x = 6,182,846,888.02
  5. Step 5: Solve for x
    x = 6,182,846,888.02/90,045.63
  6. Step 6: Final answer
    x = 68,663.49

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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.