Home / 55,477.08-76,558.88-31,603.40

Finding the Fourth Proportional to 55,477.08, 76,558.88 and 31,603.40

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Solution

The fourth proportional to 55,477.08, 76,558.88 and 31,603.40 is: 43,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,477.08 : 76,558.88 = 31,603.40 : x
  2. Step 2: Convert to fraction form
    55,477.08/76,558.88 = 31,603.40/x
  3. Step 3: Cross multiply
    55,477.08x = 76,558.88 × 31,603.40
  4. Step 4: Simplify right side
    55,477.08x = 2,419,520,908.19
  5. Step 5: Solve for x
    x = 2,419,520,908.19/55,477.08
  6. Step 6: Final answer
    x = 43,612.98

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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.