Home / 78,468.95-117,703.43-52,088.15

Finding the Fourth Proportional to 78,468.95, 117,703.43 and 52,088.15

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Solution

The fourth proportional to 78,468.95, 117,703.43 and 52,088.15 is: 78,132.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,468.95 : 117,703.43 = 52,088.15 : x
  2. Step 2: Convert to fraction form
    78,468.95/117,703.43 = 52,088.15/x
  3. Step 3: Cross multiply
    78,468.95x = 117,703.43 × 52,088.15
  4. Step 4: Simplify right side
    78,468.95x = 6,130,953,656.91
  5. Step 5: Solve for x
    x = 6,130,953,656.91/78,468.95
  6. Step 6: Final answer
    x = 78,132.23

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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.