Home / 77,319.38-106,690.76-45,476.66

Finding the Fourth Proportional to 77,319.38, 106,690.76 and 45,476.66

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Solution

The fourth proportional to 77,319.38, 106,690.76 and 45,476.66 is: 62,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,319.38 : 106,690.76 = 45,476.66 : x
  2. Step 2: Convert to fraction form
    77,319.38/106,690.76 = 45,476.66/x
  3. Step 3: Cross multiply
    77,319.38x = 106,690.76 × 45,476.66
  4. Step 4: Simplify right side
    77,319.38x = 4,851,939,417.66
  5. Step 5: Solve for x
    x = 4,851,939,417.66/77,319.38
  6. Step 6: Final answer
    x = 62,751.92

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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.