Home / 56,152.46-77,490.18-31,001.78

Finding the Fourth Proportional to 56,152.46, 77,490.18 and 31,001.78

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Solution

The fourth proportional to 56,152.46, 77,490.18 and 31,001.78 is: 42,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,152.46 : 77,490.18 = 31,001.78 : x
  2. Step 2: Convert to fraction form
    56,152.46/77,490.18 = 31,001.78/x
  3. Step 3: Cross multiply
    56,152.46x = 77,490.18 × 31,001.78
  4. Step 4: Simplify right side
    56,152.46x = 2,402,333,512.52
  5. Step 5: Solve for x
    x = 2,402,333,512.52/56,152.46
  6. Step 6: Final answer
    x = 42,782.34

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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.