Home / 77,979.54-107,603.74-57,572.47

Finding the Fourth Proportional to 77,979.54, 107,603.74 and 57,572.47

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Solution

The fourth proportional to 77,979.54, 107,603.74 and 57,572.47 is: 79,444.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,979.54 : 107,603.74 = 57,572.47 : x
  2. Step 2: Convert to fraction form
    77,979.54/107,603.74 = 57,572.47/x
  3. Step 3: Cross multiply
    77,979.54x = 107,603.74 × 57,572.47
  4. Step 4: Simplify right side
    77,979.54x = 6,195,013,299.51
  5. Step 5: Solve for x
    x = 6,195,013,299.51/77,979.54
  6. Step 6: Final answer
    x = 79,444.08

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1.5x scale

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.