Home / 56,200.08-77,555.21-30,705.90

Finding the Fourth Proportional to 56,200.08, 77,555.21 and 30,705.90

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Solution

The fourth proportional to 56,200.08, 77,555.21 and 30,705.90 is: 42,373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,200.08 : 77,555.21 = 30,705.90 : x
  2. Step 2: Convert to fraction form
    56,200.08/77,555.21 = 30,705.90/x
  3. Step 3: Cross multiply
    56,200.08x = 77,555.21 × 30,705.90
  4. Step 4: Simplify right side
    56,200.08x = 2,381,402,522.74
  5. Step 5: Solve for x
    x = 2,381,402,522.74/56,200.08
  6. Step 6: Final answer
    x = 42,373.65

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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.