Home / 55,897.49-77,138.16-31,703.06

Finding the Fourth Proportional to 55,897.49, 77,138.16 and 31,703.06

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Solution

The fourth proportional to 55,897.49, 77,138.16 and 31,703.06 is: 43,750.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,897.49 : 77,138.16 = 31,703.06 : x
  2. Step 2: Convert to fraction form
    55,897.49/77,138.16 = 31,703.06/x
  3. Step 3: Cross multiply
    55,897.49x = 77,138.16 × 31,703.06
  4. Step 4: Simplify right side
    55,897.49x = 2,445,515,714.77
  5. Step 5: Solve for x
    x = 2,445,515,714.77/55,897.49
  6. Step 6: Final answer
    x = 43,750.01

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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.