Home / 92,971.06-128,271.57-52,678.42

Finding the Fourth Proportional to 92,971.06, 128,271.57 and 52,678.42

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Solution

The fourth proportional to 92,971.06, 128,271.57 and 52,678.42 is: 72,680.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,971.06 : 128,271.57 = 52,678.42 : x
  2. Step 2: Convert to fraction form
    92,971.06/128,271.57 = 52,678.42/x
  3. Step 3: Cross multiply
    92,971.06x = 128,271.57 × 52,678.42
  4. Step 4: Simplify right side
    92,971.06x = 6,757,143,638.52
  5. Step 5: Solve for x
    x = 6,757,143,638.52/92,971.06
  6. Step 6: Final answer
    x = 72,680.08

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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.