Home / 56,527.08-78,003.72-31,376.40

Finding the Fourth Proportional to 56,527.08, 78,003.72 and 31,376.40

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Solution

The fourth proportional to 56,527.08, 78,003.72 and 31,376.40 is: 43,297.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,527.08 : 78,003.72 = 31,376.40 : x
  2. Step 2: Convert to fraction form
    56,527.08/78,003.72 = 31,376.40/x
  3. Step 3: Cross multiply
    56,527.08x = 78,003.72 × 31,376.40
  4. Step 4: Simplify right side
    56,527.08x = 2,447,475,920.21
  5. Step 5: Solve for x
    x = 2,447,475,920.21/56,527.08
  6. Step 6: Final answer
    x = 43,297.41

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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.