Home / 55,981.09-77,250.36-30,830.59

Finding the Fourth Proportional to 55,981.09, 77,250.36 and 30,830.59

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Solution

The fourth proportional to 55,981.09, 77,250.36 and 30,830.59 is: 42,544.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,981.09 : 77,250.36 = 30,830.59 : x
  2. Step 2: Convert to fraction form
    55,981.09/77,250.36 = 30,830.59/x
  3. Step 3: Cross multiply
    55,981.09x = 77,250.36 × 30,830.59
  4. Step 4: Simplify right side
    55,981.09x = 2,381,674,176.51
  5. Step 5: Solve for x
    x = 2,381,674,176.51/55,981.09
  6. Step 6: Final answer
    x = 42,544.26

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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.