Home / 61,312.40-91,999.38-28,029.50

Finding the Fourth Proportional to 61,312.40, 91,999.38 and 28,029.50

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Solution

The fourth proportional to 61,312.40, 91,999.38 and 28,029.50 is: 42,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,312.40 : 91,999.38 = 28,029.50 : x
  2. Step 2: Convert to fraction form
    61,312.40/91,999.38 = 28,029.50/x
  3. Step 3: Cross multiply
    61,312.40x = 91,999.38 × 28,029.50
  4. Step 4: Simplify right side
    61,312.40x = 2,578,696,621.71
  5. Step 5: Solve for x
    x = 2,578,696,621.71/61,312.40
  6. Step 6: Final answer
    x = 42,058.32

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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.