Home / 55,999.18-77,275.20-30,848.68

Finding the Fourth Proportional to 55,999.18, 77,275.20 and 30,848.68

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Solution

The fourth proportional to 55,999.18, 77,275.20 and 30,848.68 is: 42,569.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,999.18 : 77,275.20 = 30,848.68 : x
  2. Step 2: Convert to fraction form
    55,999.18/77,275.20 = 30,848.68/x
  3. Step 3: Cross multiply
    55,999.18x = 77,275.20 × 30,848.68
  4. Step 4: Simplify right side
    55,999.18x = 2,383,837,916.74
  5. Step 5: Solve for x
    x = 2,383,837,916.74/55,999.18
  6. Step 6: Final answer
    x = 42,569.16

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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.