Home / 42,070.14-63,114.12-12,490.02

Finding the Fourth Proportional to 42,070.14, 63,114.12 and 12,490.02

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Solution

The fourth proportional to 42,070.14, 63,114.12 and 12,490.02 is: 18,737.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,070.14 : 63,114.12 = 12,490.02 : x
  2. Step 2: Convert to fraction form
    42,070.14/63,114.12 = 12,490.02/x
  3. Step 3: Cross multiply
    42,070.14x = 63,114.12 × 12,490.02
  4. Step 4: Simplify right side
    42,070.14x = 788,296,621.08
  5. Step 5: Solve for x
    x = 788,296,621.08/42,070.14
  6. Step 6: Final answer
    x = 18,737.68

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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.