Home / 61,051.02-91,590.75-18,928.91

Finding the Fourth Proportional to 61,051.02, 91,590.75 and 18,928.91

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Solution

The fourth proportional to 61,051.02, 91,590.75 and 18,928.91 is: 28,397.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,051.02 : 91,590.75 = 18,928.91 : x
  2. Step 2: Convert to fraction form
    61,051.02/91,590.75 = 18,928.91/x
  3. Step 3: Cross multiply
    61,051.02x = 91,590.75 × 18,928.91
  4. Step 4: Simplify right side
    61,051.02x = 1,733,712,605.63
  5. Step 5: Solve for x
    x = 1,733,712,605.63/61,051.02
  6. Step 6: Final answer
    x = 28,397.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.