Home / 56,200.47-77,554.35-30,707.72

Finding the Fourth Proportional to 56,200.47, 77,554.35 and 30,707.72

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Solution

The fourth proportional to 56,200.47, 77,554.35 and 30,707.72 is: 42,375.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,200.47 : 77,554.35 = 30,707.72 : x
  2. Step 2: Convert to fraction form
    56,200.47/77,554.35 = 30,707.72/x
  3. Step 3: Cross multiply
    56,200.47x = 77,554.35 × 30,707.72
  4. Step 4: Simplify right side
    56,200.47x = 2,381,516,876.81
  5. Step 5: Solve for x
    x = 2,381,516,876.81/56,200.47
  6. Step 6: Final answer
    x = 42,375.39

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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.