Home / 55,878.55-77,111.98-30,384.92

Finding the Fourth Proportional to 55,878.55, 77,111.98 and 30,384.92

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Solution

The fourth proportional to 55,878.55, 77,111.98 and 30,384.92 is: 41,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,878.55 : 77,111.98 = 30,384.92 : x
  2. Step 2: Convert to fraction form
    55,878.55/77,111.98 = 30,384.92/x
  3. Step 3: Cross multiply
    55,878.55x = 77,111.98 × 30,384.92
  4. Step 4: Simplify right side
    55,878.55x = 2,343,041,460.16
  5. Step 5: Solve for x
    x = 2,343,041,460.16/55,878.55
  6. Step 6: Final answer
    x = 41,930.97

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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.