Home / 72,490.23-99,985.95-70,051.77

Finding the Fourth Proportional to 72,490.23, 99,985.95 and 70,051.77

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Solution

The fourth proportional to 72,490.23, 99,985.95 and 70,051.77 is: 96,622.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,490.23 : 99,985.95 = 70,051.77 : x
  2. Step 2: Convert to fraction form
    72,490.23/99,985.95 = 70,051.77/x
  3. Step 3: Cross multiply
    72,490.23x = 99,985.95 × 70,051.77
  4. Step 4: Simplify right side
    72,490.23x = 7,004,192,772.63
  5. Step 5: Solve for x
    x = 7,004,192,772.63/72,490.23
  6. Step 6: Final answer
    x = 96,622.58

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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.