Home / 55,988.32-77,262.96-30,840.16

Finding the Fourth Proportional to 55,988.32, 77,262.96 and 30,840.16

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Solution

The fourth proportional to 55,988.32, 77,262.96 and 30,840.16 is: 42,558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,988.32 : 77,262.96 = 30,840.16 : x
  2. Step 2: Convert to fraction form
    55,988.32/77,262.96 = 30,840.16/x
  3. Step 3: Cross multiply
    55,988.32x = 77,262.96 × 30,840.16
  4. Step 4: Simplify right side
    55,988.32x = 2,382,802,048.47
  5. Step 5: Solve for x
    x = 2,382,802,048.47/55,988.32
  6. Step 6: Final answer
    x = 42,558.91

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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.