Home / 77,270.83-106,628.59-42,813.26

Finding the Fourth Proportional to 77,270.83, 106,628.59 and 42,813.26

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Solution

The fourth proportional to 77,270.83, 106,628.59 and 42,813.26 is: 59,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,270.83 : 106,628.59 = 42,813.26 : x
  2. Step 2: Convert to fraction form
    77,270.83/106,628.59 = 42,813.26/x
  3. Step 3: Cross multiply
    77,270.83x = 106,628.59 × 42,813.26
  4. Step 4: Simplify right side
    77,270.83x = 4,565,117,547.10
  5. Step 5: Solve for x
    x = 4,565,117,547.10/77,270.83
  6. Step 6: Final answer
    x = 59,079.44

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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.