Home / 55,913.29-77,081.16-39,970.06

Finding the Fourth Proportional to 55,913.29, 77,081.16 and 39,970.06

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Solution

The fourth proportional to 55,913.29, 77,081.16 and 39,970.06 is: 55,102.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,913.29 : 77,081.16 = 39,970.06 : x
  2. Step 2: Convert to fraction form
    55,913.29/77,081.16 = 39,970.06/x
  3. Step 3: Cross multiply
    55,913.29x = 77,081.16 × 39,970.06
  4. Step 4: Simplify right side
    55,913.29x = 3,080,938,590.07
  5. Step 5: Solve for x
    x = 3,080,938,590.07/55,913.29
  6. Step 6: Final answer
    x = 55,102.08

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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.