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Finding the Fourth Proportional to 72,649.04, 108,973.40 and 19,341.03

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Solution

The fourth proportional to 72,649.04, 108,973.40 and 19,341.03 is: 29,011.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,649.04 : 108,973.40 = 19,341.03 : x
  2. Step 2: Convert to fraction form
    72,649.04/108,973.40 = 19,341.03/x
  3. Step 3: Cross multiply
    72,649.04x = 108,973.40 × 19,341.03
  4. Step 4: Simplify right side
    72,649.04x = 2,107,657,798.60
  5. Step 5: Solve for x
    x = 2,107,657,798.60/72,649.04
  6. Step 6: Final answer
    x = 29,011.50

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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.