Home / 47,642.58-65,748.51-28,776.06

Finding the Fourth Proportional to 47,642.58, 65,748.51 and 28,776.06

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Solution

The fourth proportional to 47,642.58, 65,748.51 and 28,776.06 is: 39,712.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,642.58 : 65,748.51 = 28,776.06 : x
  2. Step 2: Convert to fraction form
    47,642.58/65,748.51 = 28,776.06/x
  3. Step 3: Cross multiply
    47,642.58x = 65,748.51 × 28,776.06
  4. Step 4: Simplify right side
    47,642.58x = 1,891,983,068.67
  5. Step 5: Solve for x
    x = 1,891,983,068.67/47,642.58
  6. Step 6: Final answer
    x = 39,712.02

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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.