Home / 99,023.18-136,650.12-56,001.92

Finding the Fourth Proportional to 99,023.18, 136,650.12 and 56,001.92

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Solution

The fourth proportional to 99,023.18, 136,650.12 and 56,001.92 is: 77,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,023.18 : 136,650.12 = 56,001.92 : x
  2. Step 2: Convert to fraction form
    99,023.18/136,650.12 = 56,001.92/x
  3. Step 3: Cross multiply
    99,023.18x = 136,650.12 × 56,001.92
  4. Step 4: Simplify right side
    99,023.18x = 7,652,669,088.23
  5. Step 5: Solve for x
    x = 7,652,669,088.23/99,023.18
  6. Step 6: Final answer
    x = 77,281.59

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1.5x scale

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.