Home / 92,895.12-128,248.38-61,156.28

Finding the Fourth Proportional to 92,895.12, 128,248.38 and 61,156.28

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Solution

The fourth proportional to 92,895.12, 128,248.38 and 61,156.28 is: 84,430.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,895.12 : 128,248.38 = 61,156.28 : x
  2. Step 2: Convert to fraction form
    92,895.12/128,248.38 = 61,156.28/x
  3. Step 3: Cross multiply
    92,895.12x = 128,248.38 × 61,156.28
  4. Step 4: Simplify right side
    92,895.12x = 7,843,194,157.45
  5. Step 5: Solve for x
    x = 7,843,194,157.45/92,895.12
  6. Step 6: Final answer
    x = 84,430.64

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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.