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Finding the Fourth Proportional to 88,798.68, 122,608.08 and 56,985.12

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Solution

The fourth proportional to 88,798.68, 122,608.08 and 56,985.12 is: 78,681.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,798.68 : 122,608.08 = 56,985.12 : x
  2. Step 2: Convert to fraction form
    88,798.68/122,608.08 = 56,985.12/x
  3. Step 3: Cross multiply
    88,798.68x = 122,608.08 × 56,985.12
  4. Step 4: Simplify right side
    88,798.68x = 6,986,836,151.77
  5. Step 5: Solve for x
    x = 6,986,836,151.77/88,798.68
  6. Step 6: Final answer
    x = 78,681.76

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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.