Home / 58,538.64-80,783.08-31,681.20

Finding the Fourth Proportional to 58,538.64, 80,783.08 and 31,681.20

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Solution

The fourth proportional to 58,538.64, 80,783.08 and 31,681.20 is: 43,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,538.64 : 80,783.08 = 31,681.20 : x
  2. Step 2: Convert to fraction form
    58,538.64/80,783.08 = 31,681.20/x
  3. Step 3: Cross multiply
    58,538.64x = 80,783.08 × 31,681.20
  4. Step 4: Simplify right side
    58,538.64x = 2,559,304,914.10
  5. Step 5: Solve for x
    x = 2,559,304,914.10/58,538.64
  6. Step 6: Final answer
    x = 43,719.92

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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.