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Finding the Fourth Proportional to 101,033.32, 139,426.95 and 55,712.91

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Solution

The fourth proportional to 101,033.32, 139,426.95 and 55,712.91 is: 76,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,033.32 : 139,426.95 = 55,712.91 : x
  2. Step 2: Convert to fraction form
    101,033.32/139,426.95 = 55,712.91/x
  3. Step 3: Cross multiply
    101,033.32x = 139,426.95 × 55,712.91
  4. Step 4: Simplify right side
    101,033.32x = 7,767,881,116.92
  5. Step 5: Solve for x
    x = 7,767,881,116.92/101,033.32
  6. Step 6: Final answer
    x = 76,884.35

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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.