Home / 91,030.72-136,526.64-28,686.64

Finding the Fourth Proportional to 91,030.72, 136,526.64 and 28,686.64

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Solution

The fourth proportional to 91,030.72, 136,526.64 and 28,686.64 is: 43,023.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,030.72 : 136,526.64 = 28,686.64 : x
  2. Step 2: Convert to fraction form
    91,030.72/136,526.64 = 28,686.64/x
  3. Step 3: Cross multiply
    91,030.72x = 136,526.64 × 28,686.64
  4. Step 4: Simplify right side
    91,030.72x = 3,916,490,572.09
  5. Step 5: Solve for x
    x = 3,916,490,572.09/91,030.72
  6. Step 6: Final answer
    x = 43,023.83

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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.