Home / 56,045.15-77,341.31-30,551.74

Finding the Fourth Proportional to 56,045.15, 77,341.31 and 30,551.74

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Solution

The fourth proportional to 56,045.15, 77,341.31 and 30,551.74 is: 42,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,045.15 : 77,341.31 = 30,551.74 : x
  2. Step 2: Convert to fraction form
    56,045.15/77,341.31 = 30,551.74/x
  3. Step 3: Cross multiply
    56,045.15x = 77,341.31 × 30,551.74
  4. Step 4: Simplify right side
    56,045.15x = 2,362,911,054.91
  5. Step 5: Solve for x
    x = 2,362,911,054.91/56,045.15
  6. Step 6: Final answer
    x = 42,160.85

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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.