Home / 61,124.16-91,663.70-21,133.02

Finding the Fourth Proportional to 61,124.16, 91,663.70 and 21,133.02

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Solution

The fourth proportional to 61,124.16, 91,663.70 and 21,133.02 is: 31,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,124.16 : 91,663.70 = 21,133.02 : x
  2. Step 2: Convert to fraction form
    61,124.16/91,663.70 = 21,133.02/x
  3. Step 3: Cross multiply
    61,124.16x = 91,663.70 × 21,133.02
  4. Step 4: Simplify right side
    61,124.16x = 1,937,130,699.71
  5. Step 5: Solve for x
    x = 1,937,130,699.71/61,124.16
  6. Step 6: Final answer
    x = 31,691.74

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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.