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Finding the Fourth Proportional to 55.13, 76 and 46.93

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Solution

The fourth proportional to 55.13, 76 and 46.93 is: 64.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.13 : 76 = 46.93 : x
  2. Step 2: Convert to fraction form
    55.13/76 = 46.93/x
  3. Step 3: Cross multiply
    55.13x = 76 × 46.93
  4. Step 4: Simplify right side
    55.13x = 3,566.68
  5. Step 5: Solve for x
    x = 3,566.68/55.13
  6. Step 6: Final answer
    x = 64.70

Related Problems

Find fourth proportional to 27.57, 38 and 23.47
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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.