Home / 56,135.32-77,335.15-39,108.77

Finding the Fourth Proportional to 56,135.32, 77,335.15 and 39,108.77

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Solution

The fourth proportional to 56,135.32, 77,335.15 and 39,108.77 is: 53,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,135.32 : 77,335.15 = 39,108.77 : x
  2. Step 2: Convert to fraction form
    56,135.32/77,335.15 = 39,108.77/x
  3. Step 3: Cross multiply
    56,135.32x = 77,335.15 × 39,108.77
  4. Step 4: Simplify right side
    56,135.32x = 3,024,482,256.48
  5. Step 5: Solve for x
    x = 3,024,482,256.48/56,135.32
  6. Step 6: Final answer
    x = 53,878.42

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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.