Home / 42,120.74-63,159.95-14,030.91

Finding the Fourth Proportional to 42,120.74, 63,159.95 and 14,030.91

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Solution

The fourth proportional to 42,120.74, 63,159.95 and 14,030.91 is: 21,039.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.74 : 63,159.95 = 14,030.91 : x
  2. Step 2: Convert to fraction form
    42,120.74/63,159.95 = 14,030.91/x
  3. Step 3: Cross multiply
    42,120.74x = 63,159.95 × 14,030.91
  4. Step 4: Simplify right side
    42,120.74x = 886,191,503.90
  5. Step 5: Solve for x
    x = 886,191,503.90/42,120.74
  6. Step 6: Final answer
    x = 21,039.32

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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.