Home / 78,577.54-108,436.93-42,767.47

Finding the Fourth Proportional to 78,577.54, 108,436.93 and 42,767.47

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Solution

The fourth proportional to 78,577.54, 108,436.93 and 42,767.47 is: 59,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,577.54 : 108,436.93 = 42,767.47 : x
  2. Step 2: Convert to fraction form
    78,577.54/108,436.93 = 42,767.47/x
  3. Step 3: Cross multiply
    78,577.54x = 108,436.93 × 42,767.47
  4. Step 4: Simplify right side
    78,577.54x = 4,637,572,874.32
  5. Step 5: Solve for x
    x = 4,637,572,874.32/78,577.54
  6. Step 6: Final answer
    x = 59,019.06

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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.