Home / 55,829.30-77,043.57-30,678.26

Finding the Fourth Proportional to 55,829.30, 77,043.57 and 30,678.26

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Solution

The fourth proportional to 55,829.30, 77,043.57 and 30,678.26 is: 42,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,829.30 : 77,043.57 = 30,678.26 : x
  2. Step 2: Convert to fraction form
    55,829.30/77,043.57 = 30,678.26/x
  3. Step 3: Cross multiply
    55,829.30x = 77,043.57 × 30,678.26
  4. Step 4: Simplify right side
    55,829.30x = 2,363,562,671.79
  5. Step 5: Solve for x
    x = 2,363,562,671.79/55,829.30
  6. Step 6: Final answer
    x = 42,335.52

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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.