Home / 73,030.48-109,545.72-28,678.12

Finding the Fourth Proportional to 73,030.48, 109,545.72 and 28,678.12

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Solution

The fourth proportional to 73,030.48, 109,545.72 and 28,678.12 is: 43,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,030.48 : 109,545.72 = 28,678.12 : x
  2. Step 2: Convert to fraction form
    73,030.48/109,545.72 = 28,678.12/x
  3. Step 3: Cross multiply
    73,030.48x = 109,545.72 × 28,678.12
  4. Step 4: Simplify right side
    73,030.48x = 3,141,565,303.65
  5. Step 5: Solve for x
    x = 3,141,565,303.65/73,030.48
  6. Step 6: Final answer
    x = 43,017.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.