Home / 55,888.16-77,127.12-30,738.32

Finding the Fourth Proportional to 55,888.16, 77,127.12 and 30,738.32

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Solution

The fourth proportional to 55,888.16, 77,127.12 and 30,738.32 is: 42,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,888.16 : 77,127.12 = 30,738.32 : x
  2. Step 2: Convert to fraction form
    55,888.16/77,127.12 = 30,738.32/x
  3. Step 3: Cross multiply
    55,888.16x = 77,127.12 × 30,738.32
  4. Step 4: Simplify right side
    55,888.16x = 2,370,758,095.24
  5. Step 5: Solve for x
    x = 2,370,758,095.24/55,888.16
  6. Step 6: Final answer
    x = 42,419.68

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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.