Home / 103,054.51-154,603.79-31,975.59

Finding the Fourth Proportional to 103,054.51, 154,603.79 and 31,975.59

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Solution

The fourth proportional to 103,054.51, 154,603.79 and 31,975.59 is: 47,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,054.51 : 154,603.79 = 31,975.59 : x
  2. Step 2: Convert to fraction form
    103,054.51/154,603.79 = 31,975.59/x
  3. Step 3: Cross multiply
    103,054.51x = 154,603.79 × 31,975.59
  4. Step 4: Simplify right side
    103,054.51x = 4,943,547,941.28
  5. Step 5: Solve for x
    x = 4,943,547,941.28/103,054.51
  6. Step 6: Final answer
    x = 47,970.22

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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.