Home / 78,030.12-107,681.94-44,040.04

Finding the Fourth Proportional to 78,030.12, 107,681.94 and 44,040.04

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Solution

The fourth proportional to 78,030.12, 107,681.94 and 44,040.04 is: 60,775.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,030.12 : 107,681.94 = 44,040.04 : x
  2. Step 2: Convert to fraction form
    78,030.12/107,681.94 = 44,040.04/x
  3. Step 3: Cross multiply
    78,030.12x = 107,681.94 × 44,040.04
  4. Step 4: Simplify right side
    78,030.12x = 4,742,317,315.75
  5. Step 5: Solve for x
    x = 4,742,317,315.75/78,030.12
  6. Step 6: Final answer
    x = 60,775.47

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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.