Home / 66,070.86-99,121.41-28,637.16

Finding the Fourth Proportional to 66,070.86, 99,121.41 and 28,637.16

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Solution

The fourth proportional to 66,070.86, 99,121.41 and 28,637.16 is: 42,962.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,070.86 : 99,121.41 = 28,637.16 : x
  2. Step 2: Convert to fraction form
    66,070.86/99,121.41 = 28,637.16/x
  3. Step 3: Cross multiply
    66,070.86x = 99,121.41 × 28,637.16
  4. Step 4: Simplify right side
    66,070.86x = 2,838,555,677.60
  5. Step 5: Solve for x
    x = 2,838,555,677.60/66,070.86
  6. Step 6: Final answer
    x = 42,962.29

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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.