Home / 55,981.36-77,253.24-30,830.32

Finding the Fourth Proportional to 55,981.36, 77,253.24 and 30,830.32

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Solution

The fourth proportional to 55,981.36, 77,253.24 and 30,830.32 is: 42,545.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,981.36 : 77,253.24 = 30,830.32 : x
  2. Step 2: Convert to fraction form
    55,981.36/77,253.24 = 30,830.32/x
  3. Step 3: Cross multiply
    55,981.36x = 77,253.24 × 30,830.32
  4. Step 4: Simplify right side
    55,981.36x = 2,381,742,110.24
  5. Step 5: Solve for x
    x = 2,381,742,110.24/55,981.36
  6. Step 6: Final answer
    x = 42,545.27

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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.