Home / 72,030.04-99,397.43-40,200.98

Finding the Fourth Proportional to 72,030.04, 99,397.43 and 40,200.98

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Solution

The fourth proportional to 72,030.04, 99,397.43 and 40,200.98 is: 55,475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,030.04 : 99,397.43 = 40,200.98 : x
  2. Step 2: Convert to fraction form
    72,030.04/99,397.43 = 40,200.98/x
  3. Step 3: Cross multiply
    72,030.04x = 99,397.43 × 40,200.98
  4. Step 4: Simplify right side
    72,030.04x = 3,995,874,095.48
  5. Step 5: Solve for x
    x = 3,995,874,095.48/72,030.04
  6. Step 6: Final answer
    x = 55,475.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.