Home / 77,369.04-106,764.12-45,531.72

Finding the Fourth Proportional to 77,369.04, 106,764.12 and 45,531.72

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Solution

The fourth proportional to 77,369.04, 106,764.12 and 45,531.72 is: 62,830.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,369.04 : 106,764.12 = 45,531.72 : x
  2. Step 2: Convert to fraction form
    77,369.04/106,764.12 = 45,531.72/x
  3. Step 3: Cross multiply
    77,369.04x = 106,764.12 × 45,531.72
  4. Step 4: Simplify right side
    77,369.04x = 4,861,154,017.89
  5. Step 5: Solve for x
    x = 4,861,154,017.89/77,369.04
  6. Step 6: Final answer
    x = 62,830.74

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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.