Home / 61,848.64-85,261.28-40,590.72

Finding the Fourth Proportional to 61,848.64, 85,261.28 and 40,590.72

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Solution

The fourth proportional to 61,848.64, 85,261.28 and 40,590.72 is: 55,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,848.64 : 85,261.28 = 40,590.72 : x
  2. Step 2: Convert to fraction form
    61,848.64/85,261.28 = 40,590.72/x
  3. Step 3: Cross multiply
    61,848.64x = 85,261.28 × 40,590.72
  4. Step 4: Simplify right side
    61,848.64x = 3,460,816,743.32
  5. Step 5: Solve for x
    x = 3,460,816,743.32/61,848.64
  6. Step 6: Final answer
    x = 55,956.23

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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.