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Finding the Fourth Proportional to 58.08, 79.93 and 53.89

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Solution

The fourth proportional to 58.08, 79.93 and 53.89 is: 74.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.08 : 79.93 = 53.89 : x
  2. Step 2: Convert to fraction form
    58.08/79.93 = 53.89/x
  3. Step 3: Cross multiply
    58.08x = 79.93 × 53.89
  4. Step 4: Simplify right side
    58.08x = 4,307.43
  5. Step 5: Solve for x
    x = 4,307.43/58.08
  6. Step 6: Final answer
    x = 74.16

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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.