Home / 55,954.18-77,216.79-30,803.50

Finding the Fourth Proportional to 55,954.18, 77,216.79 and 30,803.50

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Solution

The fourth proportional to 55,954.18, 77,216.79 and 30,803.50 is: 42,508.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,954.18 : 77,216.79 = 30,803.50 : x
  2. Step 2: Convert to fraction form
    55,954.18/77,216.79 = 30,803.50/x
  3. Step 3: Cross multiply
    55,954.18x = 77,216.79 × 30,803.50
  4. Step 4: Simplify right side
    55,954.18x = 2,378,547,390.77
  5. Step 5: Solve for x
    x = 2,378,547,390.77/55,954.18
  6. Step 6: Final answer
    x = 42,508.84

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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.