Home / 47,389.16-70,776.47-42,937.92

Finding the Fourth Proportional to 47,389.16, 70,776.47 and 42,937.92

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Solution

The fourth proportional to 47,389.16, 70,776.47 and 42,937.92 is: 64,128.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,389.16 : 70,776.47 = 42,937.92 : x
  2. Step 2: Convert to fraction form
    47,389.16/70,776.47 = 42,937.92/x
  3. Step 3: Cross multiply
    47,389.16x = 70,776.47 × 42,937.92
  4. Step 4: Simplify right side
    47,389.16x = 3,038,994,192.05
  5. Step 5: Solve for x
    x = 3,038,994,192.05/47,389.16
  6. Step 6: Final answer
    x = 64,128.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.