Home / 92,928.72-128,166.21-57,054.63

Finding the Fourth Proportional to 92,928.72, 128,166.21 and 57,054.63

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Solution

The fourth proportional to 92,928.72, 128,166.21 and 57,054.63 is: 78,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,928.72 : 128,166.21 = 57,054.63 : x
  2. Step 2: Convert to fraction form
    92,928.72/128,166.21 = 57,054.63/x
  3. Step 3: Cross multiply
    92,928.72x = 128,166.21 × 57,054.63
  4. Step 4: Simplify right side
    92,928.72x = 7,312,475,690.05
  5. Step 5: Solve for x
    x = 7,312,475,690.05/92,928.72
  6. Step 6: Final answer
    x = 78,689.08

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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.