Home / 55,829.84-77,042.40-30,680.24

Finding the Fourth Proportional to 55,829.84, 77,042.40 and 30,680.24

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Solution

The fourth proportional to 55,829.84, 77,042.40 and 30,680.24 is: 42,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,829.84 : 77,042.40 = 30,680.24 : x
  2. Step 2: Convert to fraction form
    55,829.84/77,042.40 = 30,680.24/x
  3. Step 3: Cross multiply
    55,829.84x = 77,042.40 × 30,680.24
  4. Step 4: Simplify right side
    55,829.84x = 2,363,679,322.18
  5. Step 5: Solve for x
    x = 2,363,679,322.18/55,829.84
  6. Step 6: Final answer
    x = 42,337.20

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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.