Home / 77,436.86-106,862.40-42,981.24

Finding the Fourth Proportional to 77,436.86, 106,862.40 and 42,981.24

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Solution

The fourth proportional to 77,436.86, 106,862.40 and 42,981.24 is: 59,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,436.86 : 106,862.40 = 42,981.24 : x
  2. Step 2: Convert to fraction form
    77,436.86/106,862.40 = 42,981.24/x
  3. Step 3: Cross multiply
    77,436.86x = 106,862.40 × 42,981.24
  4. Step 4: Simplify right side
    77,436.86x = 4,593,078,461.38
  5. Step 5: Solve for x
    x = 4,593,078,461.38/77,436.86
  6. Step 6: Final answer
    x = 59,313.85

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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.