Home / 61,038.50-91,558.32-21,602.30

Finding the Fourth Proportional to 61,038.50, 91,558.32 and 21,602.30

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Solution

The fourth proportional to 61,038.50, 91,558.32 and 21,602.30 is: 32,403.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,038.50 : 91,558.32 = 21,602.30 : x
  2. Step 2: Convert to fraction form
    61,038.50/91,558.32 = 21,602.30/x
  3. Step 3: Cross multiply
    61,038.50x = 91,558.32 × 21,602.30
  4. Step 4: Simplify right side
    61,038.50x = 1,977,870,296.14
  5. Step 5: Solve for x
    x = 1,977,870,296.14/61,038.50
  6. Step 6: Final answer
    x = 32,403.65

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1.5x scale

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.